Perhaps you should try some spelling variations:
da literatura » la literatura, a literatura, de literatura
filosofia da » filosofia de, filosofia del, filosofia e
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 da literatura*.