Perhaps you should try some spelling variations:
22historic buildings » historic buildings, _ historicbuildings, historical buildings
historic building » historic buildings, historical building, historical buildings
20 conservation » 10 conservation, 2.1 conservation, 9 conservation
two island » two islands, two land
2f cape » 2 cape, off cape
21 cape » 21 case, 11 cape, 21 cake
83 two » 8.3 two, 13 two, 23 two
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)) %20 conservation AND restoration %((2f cape) OR (21 cape)) verde %((2f sa) OR (2f a))%cc%83 two island%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22historic buildings) or (historic building)) %20 conservation and restoration %((2f cape) or (21 cape)) verde %((2f sa) OR (2f a))%cc%83 two island%22".
• Adding a wildcard symbol may retrieve word variants: %((22historic buildings) or (historic building)) %20 conservation and restoration %((2f cape) or (21 cape)) verde %((2f sa) OR (2f a))%cc%83 two island%22*.