For anyone’s future reference: Here is what I did: added a separate field in the schema:

text_stemmed

. I used

nltk.PorterStemmer

for stemming the content and store the resultant string in

text_stemmed

. While querying I use the same method to generate stemmed query string. I concatenate the original query and the stemmed query. In the search params, I added the

text_stemmed

at the last of the

query_by

param. So the exact matches are still prioritized higher.