Perhaps you should try some spelling variations:
22historic buildings » historic buildings, _ historicbuildings, historical buildings
historic building » historic buildings, historical building, historical buildings
21 conservation » 2.1 conservation, 11 conservation, 1 conservation
saldo island » sado island, sand island, sandy island
21 cape » 21 case, 11 cape, 21 cake
2f a » 2fa a, e2f a, h2f 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: %((22historic buildings) OR (historic building)) %21 conservation AND restoration %((off cape) OR (21 cape)) verde %((2f sa) OR (2f a))%cc%83o saldo island%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22historic buildings) or (historic building)) %21 conservation and restoration %((off cape) or (21 cape)) verde %((2f sa) OR (2f a))%cc%83o saldo island%22".
• Adding a wildcard symbol may retrieve word variants: %((22historic buildings) or (historic building)) %21 conservation and restoration %((off cape) or (21 cape)) verde %((2f sa) OR (2f a))%cc%83o saldo island%22*.