diff --git a/docs/configuration.md b/docs/configuration.md
index 371ed35f6..1b2d04878 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -12,7 +12,7 @@ You can configure Docsify by defining `window.$docsify` as an object:
 </script>
 ```
 
-The config can also be defined as a function, in which case the first arg is the Docsify `vm` instance. The function should return a config object. This can be useful for referencing `vm` in places like the markdown configuration:
+The config can also be defined as a function, in which case the first argument is the Docsify `vm` instance. The function should return a config object. This can be useful for referencing `vm` in places like the markdown configuration:
 
 ```html
 <script>
@@ -35,7 +35,7 @@ The config can also be defined as a function, in which case the first arg is the
 - Type: `String`
 - Default: `#app`
 
-The DOM element to be mounted on initialization. It can be a CSS selector string or an actual HTMLElement.
+The DOM element to be mounted on initialization. It can be a CSS selector string or an actual [HTMLElement](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement).
 
 ```js
 window.$docsify = {
@@ -48,7 +48,7 @@ window.$docsify = {
 - Type: `String`
 - Default: `null`
 
-Configure the repository url or a string of `username/repo` can add the [GitHub Corner](http://tholman.com/github-corners/) widget in the top right corner of the site.
+Configure the repository url, or a string of `username/repo` can add the [GitHub Corner](http://tholman.com/github-corners/) widget in the top right corner of the site.
 
 ```js
 window.$docsify = {
@@ -76,7 +76,7 @@ window.$docsify = {
 - Type: `Boolean|String`
 - Default: `false`
 
-Loads navbar from the Markdown file `_navbar.md` if **true**, or else from the path specified.
+Loads navbar from the Markdown file `_navbar.md` if **true**, else loads it from the path specified.
 
 ```js
 window.$docsify = {
@@ -93,7 +93,7 @@ window.$docsify = {
 - Type: `Boolean|String`
 - Default: `false`
 
-Loads sidebar from the Markdown file `_sidebar.md` if **true**, or else from the path specified.
+Loads sidebar from the Markdown file `_sidebar.md` if **true**, else loads it from the path specified.
 
 ```js
 window.$docsify = {
@@ -110,7 +110,7 @@ window.$docsify = {
 - Type : `Boolean`
 - Default: `true`
 
-This option will completely hide your sidebar and wont render any content of the side even .
+This option will completely hide your sidebar and won't render any content on the side.
 
 ```js
 window.$docsify = {
@@ -149,7 +149,7 @@ window.$docsify = {
 - Type: `String`
 - Default: `README.md`
 
-`README.md` in your docs folder will be treated as homepage for your website, but sometimes you may need to serve another file as your homepage.
+`README.md` in your docs folder will be treated as the homepage for your website, but sometimes you may need to serve another file as your homepage.
 
 ```js
 window.$docsify = {
@@ -196,7 +196,7 @@ window.$docsify = {
 - Type: `Boolean`
 - Default: `false`
 
-If **true** links are relative to the current context.
+If **true**, links are relative to the current context.
 
 For example, the directory structure is as follows:
 
@@ -260,7 +260,7 @@ window.$docsify = {
 
 - Type: `String`
 
-Website logo as it appears in the sidebar, you can resize by CSS.
+Website logo as it appears in the sidebar. You can resize it by using CSS.
 
 ```js
 window.$docsify = {
@@ -367,7 +367,7 @@ window.$docsify = {
 
 - type: `Boolean`
 
-If `loadSidebar` and `autoHeader` are both enabled, for each link in `_sidebar.md`, prepend a header to the page before converting it to html. Compare [#78](https://github.com/docsifyjs/docsify/issues/78).
+If `loadSidebar` and `autoHeader` are both enabled, for each link in `_sidebar.md`, prepend a header to the page before converting it to HTML. Compare [#78](https://github.com/docsifyjs/docsify/issues/78).
 
 ```js
 window.$docsify = {
@@ -474,7 +474,7 @@ window.$docsify = {
 - type: `String`
 - default: `noopener`
 
-Default `'noopener'` (no opener) prevents the newly opened external page (when [externalLinkTarget](#externallinktarget) is `'_blank'`) from having the ability to control our page. No `rel` is set when its not `'_blank'`. See [this post](https://mathiasbynens.github.io/rel-noopener/) for more information about why you may want to use this option.
+Default `'noopener'` (no opener) prevents the newly opened external page (when [externalLinkTarget](#externallinktarget) is `'_blank'`) from having the ability to control our page. No `rel` is set when it's not `'_blank'`. See [this post](https://mathiasbynens.github.io/rel-noopener/) for more information about why you may want to use this option.
 
 ```js
 window.$docsify = {
@@ -557,13 +557,13 @@ window.$docsify = {
 
 - type: `Array<string>`
 
-List of languages that will fallback to the default language when a page is request and didn't exists for the given local.
+List of languages that will fallback to the default language when a page is requested and it doesn't exist for the given local.
 
 Example:
 
-- try to fetch the page of `/de/overview`. If this page exists, it'll be displayed
-- then try to fetch the default page `/overview` (depending on the default language). If this page exists, it'll be displayed
-- then display 404 page.
+- try to fetch the page of `/de/overview`. If this page exists, it'll be displayed.
+- then try to fetch the default page `/overview` (depending on the default language). If this page exists, it'll be displayed.
+- then display the 404 page.
 
 ```js
 window.$docsify = {
@@ -583,7 +583,7 @@ window.$docsify = {
 };
 ```
 
-Load the customised path of the 404 page:
+Load the customized path of the 404 page:
 
 ```js
 window.$docsify = {
diff --git a/docs/plugins.md b/docs/plugins.md
index 51acefbb5..feca8b551 100644
--- a/docs/plugins.md
+++ b/docs/plugins.md
@@ -44,6 +44,17 @@ By default, the hyperlink on the current page is recognized and the content is s
       // To avoid search index collision
       // between multiple websites under the same domain
       namespace: 'website-1',
+
+      // Use different indexes for path prefixes (namespaces).
+      // NOTE: Only works in 'auto' mode.
+      //
+      // When initialiazing an index, we look for the first path from the sidebar.
+      // If it matches the prefix from the list, we switch to the corresponding index.
+      pathNamespaces: ['/zh-cn', '/ru-ru', '/ru-ru/v1'],
+
+      // You can provide a regexp to match prefixes. In this case,
+      // the matching substring will be used to identify the index
+      pathNamespaces: /^(\/(zh-cn|ru-ru))?(\/(v1|v2))?/
     }
   }
 </script>
diff --git a/index.html b/index.html
index 9c950964d..ddacdecda 100644
--- a/index.html
+++ b/index.html
@@ -51,7 +51,8 @@
           '/de-de/': 'Suche',
           '/zh-cn/': '搜索',
           '/': 'Search'
-        }
+        },
+        pathNamespaces: ['/zh-cn', '/de-de', '/ru-ru', '/es']
       },
       plugins: [
         function (hook, vm) {
diff --git a/src/plugins/search/index.js b/src/plugins/search/index.js
index 54d8a79c7..e97c3b026 100644
--- a/src/plugins/search/index.js
+++ b/src/plugins/search/index.js
@@ -10,6 +10,7 @@ const CONFIG = {
   maxAge: 86400000, // 1 day
   hideOtherSidebarContent: false,
   namespace: undefined,
+  pathNamespaces: undefined,
 };
 
 const install = function(hook, vm) {
@@ -27,6 +28,7 @@ const install = function(hook, vm) {
     CONFIG.hideOtherSidebarContent =
       opts.hideOtherSidebarContent || CONFIG.hideOtherSidebarContent;
     CONFIG.namespace = opts.namespace || CONFIG.namespace;
+    CONFIG.pathNamespaces = opts.pathNamespaces || CONFIG.pathNamespaces;
   }
 
   const isAuto = CONFIG.paths === 'auto';
diff --git a/src/plugins/search/search.js b/src/plugins/search/search.js
index 093904b0e..6a212c016 100644
--- a/src/plugins/search/search.js
+++ b/src/plugins/search/search.js
@@ -198,9 +198,29 @@ export function search(query) {
 
 export function init(config, vm) {
   const isAuto = config.paths === 'auto';
+  const paths = isAuto ? getAllPaths(vm.router) : config.paths;
+
+  let namespaceSuffix = '';
+
+  // only in auto mode
+  if (isAuto && config.pathNamespaces) {
+    const path = paths[0];
+
+    if (Array.isArray(config.pathNamespaces)) {
+      namespaceSuffix =
+        config.pathNamespaces.find(prefix => path.startsWith(prefix)) ||
+        namespaceSuffix;
+    } else if (config.pathNamespaces instanceof RegExp) {
+      const matches = path.match(config.pathNamespaces);
+
+      if (matches) {
+        namespaceSuffix = matches[0];
+      }
+    }
+  }
 
-  const expireKey = resolveExpireKey(config.namespace);
-  const indexKey = resolveIndexKey(config.namespace);
+  const expireKey = resolveExpireKey(config.namespace) + namespaceSuffix;
+  const indexKey = resolveIndexKey(config.namespace) + namespaceSuffix;
 
   const isExpired = localStorage.getItem(expireKey) < Date.now();
 
@@ -212,15 +232,9 @@ export function init(config, vm) {
     return;
   }
 
-  const paths = isAuto ? getAllPaths(vm.router) : config.paths;
   const len = paths.length;
   let count = 0;
 
-  // Fix search error when exist translations documents
-  if (INDEXS !== null && !INDEXS[paths[0]]) {
-    INDEXS = {};
-  }
-
   paths.forEach(path => {
     if (INDEXS[path]) {
       return count++;