google app engine - How to perform stemming/lemming on GAE-search application? -

i trying implement stemming in search app. have tried using ~ operator, didn't work.

so, have 3 questions:

1) should index document in special way able search using ~ operator? have document contained "words", can't found query="~word".

2) operator ~ support other languages?

3) suggest use other stemmer/lemmer not built-in one?

thanks lot!

the stemming operator ~ work, @ least finding word "words" query ~word.

are putting "~word" in quotes in query? disable stemming.

also, forgot mention previously, stemming isn't implemented in development servers; works in real app engine environment hosted google.