Perhaps you should try some spelling variations:
20 conservation » 10 conservation, 2.1 conservation, 9 conservation
sao tiago » san tiago, joao tiago, kato tiago
2f cape » 2 cape, off cape
21 cape » 21 case, 11 cape, 21 cake
2f sa » 2f a

Try widening your search to All Fields.

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: %((22((historical buildings) OR (historic buildings))s) OR (((historical buildings) OR (historic buildings)))) %20 conservation AND restoration %((2f cape) OR (21 cape)) verde %2f sa%cc%((83o tiago) OR (sao tiago)) island%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22((historical buildings) or (historic buildings))s) or (((historical buildings) or (historic buildings)))) %20 conservation and restoration %((2f cape) or (21 cape)) verde %2f sa%cc%((83o tiago) OR (sao tiago)) island%22".
• Adding a wildcard symbol may retrieve word variants: %((22((historical buildings) or (historic buildings))s) or (((historical buildings) or (historic buildings)))) %20 conservation and restoration %((2f cape) or (21 cape)) verde %2f sa%cc%((83o tiago) OR (sao tiago)) island%22*.