Perhaps you should try some spelling variations:
de literatura » de litterature, la literatura, y literatura
filosofia de » filosofia del
studies dan » studies dn, studies das, studies dance
tesi delle » testi delle, test delle, testi della
studies da » studies dna, studies das, studies ds

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: tesi delle ((studies da) OR (studies dan)) filosofia de literatura.
• Adding a wildcard symbol may retrieve word variants: tesi delle ((studies da) or (studies dan)) filosofia de literatura*.