Perhaps you should try some spelling variations:
historic building » historical building, historical buildings, story building
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
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: %((22((historic building) OR (historic buildings))s) OR (((historic building) OR (historic buildings)))) %2.1 conservation AND restoration %21 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: "%((22((historic building) or (historic buildings))s) or (((historic building) or (historic buildings)))) %2.1 conservation and restoration %21 cape verde %((2f sa) OR (2f a))%cc%83o ((tiago island) or (tobago island))%22".
• Adding a wildcard symbol may retrieve word variants: %((22((historic building) or (historic buildings))s) or (((historic building) or (historic buildings)))) %2.1 conservation and restoration %21 cape verde %((2f sa) OR (2f a))%cc%83o ((tiago island) or (tobago island))%22*.