Perhaps you should try some spelling variations:
22historic buildings » _ historicbuildings, historical buildings, historical building
historic building » historical building, historical buildings, story building
2.1 conservation » 21 conservation, 11 conservation, 2.1 construction
20 conservation » 9 conservation, 8 conservation, 10 conservative
10 conservation » 9 conservation
tiago island » tobago island, two island, bioko island
2f cape » 2 cape, 21 cape, off cape
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: %((((22historic buildings) OR (historic buildings))) OR (historic building)) %((2.1 conservation) OR (((20 conservation) OR (10 conservation)))) AND restoration %2f cape verde %2f sa%cc%83o ((tiago island) OR (sado island))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22historic buildings) or (historic buildings))) or (historic building)) %((2.1 conservation) or (((20 conservation) OR (10 conservation)))) and restoration %2f cape verde %2f sa%cc%83o ((tiago island) or (sado island))%22".
• Adding a wildcard symbol may retrieve word variants: %((((22historic buildings) or (historic buildings))) or (historic building)) %((2.1 conservation) or (((20 conservation) OR (10 conservation)))) and restoration %2f cape verde %2f sa%cc%83o ((tiago island) or (sado island))%22*.