Perhaps you should try some spelling variations:
der filosofia » de filosofia, e filosofia, da filosofia
di filosofia » la filosofia, e filosofia
list studie » last studies, mit studie, kleist studien
tests list » tests ist, tests light, tests test

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 list studie ((der filosofia) OR (di filosofia)) a literature".
• Adding a wildcard symbol may retrieve word variants: tests list studie ((der filosofia) OR (di filosofia)) a literature*.