Perhaps you should try some spelling variations:
la litterature » a literature
das filosofia » da filosofia, la filosofia, a filosofia
five studies » wave studies, five stories, native studies
di filosofia » la filosofia, e filosofia
test five » test file, test files, least five

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: "test five studies ((das filosofia) OR (di filosofia)) la litterature*".