Perhaps you should try some spelling variations:
biblioteca del » biblioteca della, biblioteca di
biblioteca de » biblioteca di, biblioteca _, biblioteca della
theories eft » theories e, theories deftab, theories effect
theories et » theories e, theoriques et, theoremes et

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: ((biblioteca de) OR (biblioteca del)) science ((theories et) OR (theories eft)) morais*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((biblioteca de) or (biblioteca del)) science ((theories et) OR (theories eft)) morais*".