I am searching stemming algorithm for Slovenian language that I can use with Sphinx search.
What I\'m trying to achieve is for example when searching for \'jabolka\'
I'm not sure if this will do what you want, but I came across this reference to a tool called spelldump in the Sphinx documentation:
spelldump is one of the helper tools within the Sphinx package.
It is used to extract the contents of a dictionary file that uses ispell or MySpell format, which can help build word lists for wordforms - all of the possible forms are pre-built for you.
http://sphinxsearch.com/docs/current.html#ref-spelldump
It requires "a dictionary file that uses ispell or MySpell" - I found a reference to a Slovenian ispell dictionary file, which might be suitable.
Good luck!