Perhaps you should try some spelling variations:
a literatura » la literatura, a literature, y literatura
studium die » studium des
filosofia a » filosofia da, filosofia la, filosofia e
test duale » test double, test delle, test orale

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: "test duale ((studium die) OR (studium der)) filosofia a literatura".
• Adding a wildcard symbol may retrieve word variants: test duale ((studium die) OR (studium der)) filosofia a literatura*.