Perhaps you should try some spelling variations:
der filosofica » de filosofia, e filosofica, e filosofia
filosofica da » filosofia da, filosofia de, filosofia di
da literatura » la literatura, a literatura, de literatura
testo das » test das, testen das, test dast
tests das » tests des, test das, tests data

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: "((testo das) OR (tests das)) studium der filosofica da literatura*".