Perhaps you should try some spelling variations:
di literatura » de literatura, da literatura, ii literatura
filosofia di » filosofia de, filosofia da, filosofia del
e filosofia » la filosofia
studium e » studium _, studium 1, studium 3
test das » test des, test day, west das
west a » west ak, west _

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 das) OR (west a)) studium e filosofia di literatura".
• Adding a wildcard symbol may retrieve word variants: ((test das) OR (west a)) studium e filosofia di literatura*.