Perhaps you should try some spelling variations:
e literature » e literatur, life literature, prose literature
testi delle » test delle, testi della, test della
y filosofia » e filosofia, a filosofia, la filosofia
filosofia e » filosofia de, filosofia del
tesi delle » test delle, testi della, beni delle
studien y » studien _, studien 3, studien 4

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: ((testi delle) OR (tesi delle)) studien y filosofia e literature*.