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