FTS config - cannot search substrings

Hi,

I have an issue with FTS, maybe someone here can help me out.

Basically my setup is working with solr + tika enabled, however, it seems my search is not configured the way I expect it. Eg when I receive a pdf document containing the word "myfoobar" I cannot search for "myfoo" or "foobar", but searching for "myfoobar" shows the right result.

Any ideas? Thanks!