Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
tests stable » tests table, sets stable, test table
filosofia la » filosofia da, filosofia le, filosofica da
tests cable » tests table, tests tables, tests case
e filosofia » la filosofia

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tests cable) OR (tests stable)) studies e filosofia la literatura*.