Perhaps you should try some spelling variations:
historical buildings » historic buildings
2.2 conservation » 22 conservation, 1.2 conservation, 10.2 conservation
2f conservation » 20 conservation, 2.1 conservation, 2.7 conservation
story building » theory building, summary building
tiago island » tobago island, sado island, two island
sao tiago » san tiago, joao tiago, kato tiago
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: %((22((story building) OR (historical buildings))s) OR (((story building) OR (historical buildings)))) %((2f conservation) OR (2.2 conservation)) AND restoration %((off cape) OR (21 cape)) verde %2f sa%cc%sao tiago island%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22((story building) or (historical buildings))s) or (((story building) or (historical buildings)))) %((2f conservation) OR (2.2 conservation)) and restoration %((off cape) or (21 cape)) verde %2f sa%cc%sao tiago island%22".
• Adding a wildcard symbol may retrieve word variants: %((22((story building) or (historical buildings))s) or (((story building) or (historical buildings)))) %((2f conservation) OR (2.2 conservation)) and restoration %((off cape) or (21 cape)) verde %2f sa%cc%sao tiago island%22*.