Perhaps you should try some spelling variations:
une litterature » de litterature, en litterature, one literature
das filosofia » da filosofia, la filosofia, a filosofia
five studies » wave studies, five stories, native studies
di filosofia » la filosofia, e filosofia
least five » last five, least fixed, past five

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: least five studies ((das filosofia) OR (di filosofia)) une litterature.
• Adding a wildcard symbol may retrieve word variants: least five studies ((das filosofia) or (di filosofia)) une litterature*.