Perhaps you should try some spelling variations:
de literatura » de litterature, la literatura, y literatura
das filosofia » da filosofia, la filosofia, di filosofia
filosofia de » filosofia del
studium das » studium des, studium der, studium die
test dem » test des, test de, nebst dem

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: ((test dem) OR (test der)) studium das filosofia de literatura.
• Adding a wildcard symbol may retrieve word variants: ((test dem) or (test der)) studium das filosofia de literatura*.