Perhaps you should try some spelling variations:
y literatura » la literatura
studies dan » studies dn, studies das, studies dance
filosofia y » filosofia e, filosofia _, filosofia de
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "tesi delle ((studies da) OR (studies dan)) filosofia y literatura".
• Adding a wildcard symbol may retrieve word variants: tesi delle ((studies da) OR (studies dan)) filosofia y literatura*.