[MPT-5] Mentors: Fuzzy search unable to retrieve certain mentor profile

[IvanFengJK]

When typing "wei teng" into the search bar, instead of returning the profile of "Wei Theng Ng", no profile is being returned.

However, when typing "wei thng" into the search bar, the profile of "Wei Theng Ng" is found.

Below is a screenshot of the problem. This has not been thoroughly investigated so this behaviour may happen for other profiles. It is unconfirmed for now.

_MPT-5

[IvanFengJK]

After further research, here are the documentations for precision tuning: https://www.elastic.co/guide/en/app-search/current/precision-tuning.html It looks like Elastic Search has its own built-in fuzzy query and it cannot be modified.

There is also this gist that suggests that elastic search only works well when the first two letters are correct. https://gist.github.com/richkuz/ee645b3540c49e2a12b394081e7f4c4b

Therefore, Elastic Search has an internal limitation when the typo happens in the first two letters of the word.