Perhaps you should try some spelling variations:
di filosofia » la filosofia, e filosofia
a literatura » la literatura, a literature, a literatur
y literatura » la literatura
studium di » studium die, studium i, studium ii
test das » test des, test day, west das

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

• If you are trying to use Boolean operators, they must be ALL CAPS: test das studium di filosofia ((a literatura) OR (y literatura)).
• Adding a wildcard symbol may retrieve word variants: test das studium di filosofia ((a literatura) or (y literatura))*.