Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
filosofia la » filosofia da, filosofia le, filosofica da
d filosofia » di filosofia, de filosofia, da filosofia
test dees » test des, test does, test ideen
studium d » studium ad, studium _, studium 1
test de » test der, test des, est de

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 de) OR (test dees)) studium d filosofia la literatura.
• Adding a wildcard symbol may retrieve word variants: ((test de) or (test dees)) studium d filosofia la literatura*.