Perhaps you should try some spelling variations:
der filosofica » de filosofia, e filosofica, e filosofia
da literatura » la literatura, a literatura, na literatura
de literatura » de litterature, la literatura, y literatura
testo das » test das, tests das, testen das

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 studium der filosofica ((da literatura) OR (de literatura))".
• Adding a wildcard symbol may retrieve word variants: testo das studium der filosofica ((da literatura) OR (de literatura))*.