Perhaps you should try some spelling variations:
filosofia della » filosofia del, filosofia de
dello studio » nello studio, allo studio, dello stato
filosofia e » filosofia de, filosofia del
test dello » test della, test delle, test hello
studio a » 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 a ((filosofia della) OR (filosofia e)) literatura.
• Adding a wildcard symbol may retrieve word variants: test dello studio a ((filosofia della) or (filosofia e)) literatura*.