Perhaps you should try some spelling variations:
de literatura » de litterature, la literatura, y literatura
de literature » de litterature, de lite'rature, e literature
di filosofia » la filosofia, e filosofia
allo studio » lo studio
studio di » studio _, studio a, studio 3
tesi » test, teso, temi

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 allo studio di filosofia ((de literature) OR (de literatura))*".