Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
filosofia la » filosofia da, filosofia le, filosofica da
best peer » best peere, best paper, best pre
best peep » best speed, best peere, best pre
studie 4 » studie _, studie 1, studie 3

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: ((best peer) OR (best peep)) ((studie 4) OR (studie 2)) filosofia la literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((best peer) or (best peep)) ((studie 4) OR (studie 2)) filosofia la literatura".
• Adding a wildcard symbol may retrieve word variants: ((best peer) or (best peep)) ((studie 4) OR (studie 2)) filosofia la literatura*.