Perhaps you should try some spelling variations:
als filosofia » alla filosofia, la filosofia, a filosofia
e literatura » de literatura, e literatur, a literatura
y literatura » la literatura
studium als » studium des
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: "tests das studium als filosofia ((e literatura) OR (y literatura))".
• Adding a wildcard symbol may retrieve word variants: tests das studium als filosofia ((e literatura) OR (y literatura))*.