Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
das filosofia » da filosofia, la filosofia, di filosofia
der studium » oder studium, dem studium, des studium
studium das » studium des, studium der, studium die
tests » test, texts

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

• Adding a wildcard symbol may retrieve word variants: tests der studium das filosofia del literatura*.