Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, e literatura
filosofia le » filosofia de, filosofia e, filosofia del
a filosofia » la filosofia, e filosofia, di filosofia
studium a » studium am, studium ad, studium _
test de » test des, est de

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