Similarity search using bingo-elastic

[projectssimm]

Hi guys,
I've been using bingo-elastic(python) to get some similarities to certain compounds, but got confused. Here is the situation:
I was trying to get some similarities using the following code:
compoud = indigo.loadMoleculeFromFile("CH1.mol")
sim = TanimotoSimilarityMatch(compoud, 0.5)
similar_records = repository.filter(query_subject=[sim])
for record in similar_records:
print(record.as_indigo_object(indigo).smiles(), indigo.similarity(compoud, record.as_indigo_object(indigo)))
What I meant was trying to get the top similarities and the corresponding similarity values, but I got the following outputs:
C:...\python.exe D:...\test.py
CC(=O)C12OC1CC1C3CC=C4CC(O)CCC4(C)C3CCC21C 0.5970149040222168
O=C1CCCCCCCCCOCCCCCO1 0.38333332538604736
CCCC/C=C\O/C=C/C=C\CCCCCCCC(=O)[O-] 0.3636363744735718
COc1ccc(OC)c(/C=C2\Oc3c(C)c4c(cc3C\2=O)CNH+CO4)c1 0.25641027092933655
O=C1N=C([O-])NC(=O)C1(Cc1ccc2c(OCO2)c1)CN1CC2C[n]3c(=O)cccc3C(C2)C1 0.16249999403953552
COc1ccc(C(=O)COc2ccc3c(O/C(=C\c4cc(Br)ccc4OC)/C3=O)c2C)cc1 0.22727273404598236
COc1cc(/C=C2/Oc3c(CN4CCN(c5cccc[nH+]5)CC4)c([O-])cc(C)c3C/2=O)cc(OC)c1OC 0.21167883276939392
COc1ccc(/C=C2\C(=O)N=C([O-])NC\2=O)cc1OC 0.1818181872367859
CCOC(=O)c1c(C)oc2cc(Br)c(OC(=O)c3ccccc3Cl)cc12 0.15267175436019897
Cc1c(OCC#N)ccc2c1O/C(=C\c1cccc(Br)c1)/C2=O 0.2232142835855484

1. As far as I understood, I had set the min threhold of the similarity(which=0.5 in this case), but I got so many compounds with similarties less than the threhold, what happened? Did I do something wrong?
2. How could I get the similar compounds and order them in similarities at the first place? (i.e. Could I use some parameters in TanimotoSimilarityMatch or some other functions to make them in similarity order(desc or asc) at the first place?
   Best,

[PythonZhao]

Looking forward to resolving this issue