Perhaps you should try some spelling variations:
da literatura » la literatura, a literatura, de literatura
dello studio » nello studio, dello stato, lo studio
filosofia da » filosofia de, filosofia del, filosofia e
allo studio » lo studio

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 ((dello studio) OR (allo studio)) la filosofia da literatura.
• Adding a wildcard symbol may retrieve word variants: test ((dello studio) or (allo studio)) la filosofia da literatura*.