Perhaps you should try some spelling variations:
22historic buildings » historic buildings, _ historicbuildings, historical buildings
historic building » historic buildings, historical building, historical buildings
2.1 conservation » 21 conservation, 11 conservation, 2.1 construction
tobago island » tobago iceland, tobago ireland, fogo island
tiago island » sado island, two island, bioko island
2f cape » 2 cape, 21 cape, off cape
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)) %2.1 conservation AND restoration %2f cape verde %((2f sa) OR (2f a))%cc%83o ((tiago island) OR (tobago island))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22historic buildings) or (historic building)) %2.1 conservation and restoration %2f cape verde %((2f sa) OR (2f a))%cc%83o ((tiago island) or (tobago island))%22".
• Adding a wildcard symbol may retrieve word variants: %((22historic buildings) or (historic building)) %2.1 conservation and restoration %2f cape verde %((2f sa) OR (2f a))%cc%83o ((tiago island) or (tobago island))%22*.