Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, e literatura
filosofia le » filosofia de, filosofia e, filosofia del
3 filosofia » e filosofia, a filosofia, y filosofia
test delle » testi delle, test della, testa della
tesi delle » testi delle, testi della, beni delle
studien 3 » studien _, studien 4, studien 5

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 delle) OR (tesi delle)) studien 3 filosofia le literatura*.