Perhaps you should try some spelling variations:
la litterature » a literature
der filosofia » de filosofia, e filosofia, di filosofia
filosofia la » filosofia da, filosofia le, filosofica da
des studien » des studie, die studien, aus studien
das studien » davis studien, das studieren, das studium

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tests ((des studien) OR (das studien)) der filosofia la litterature*".