Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
der filosofia » de filosofia, e filosofia, di filosofia
studie der » studium der
de studie » die studie, de studio, e studie
tests de » tests der, tests die, tests des

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

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