Perhaps you should try some spelling variations:
historical buildings » historic buildings
2f conservation » 20 conservation, 2.1 conservation, 2.2 conservation
story building » theory building, summary building
tiago island » tobago island, sado island, two island
sao tiago » san tiago, joao tiago, kato tiago
21 cake » 21 case, 21 cases, 21 cable
2f cape » 2 cape, off cape
21 cape » 21 case, 11 cape, 21 cap
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 AND restoration %((2f cape) OR (((21 cape) OR (21 cake)))) 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 and restoration %((2f cape) or (((21 cape) OR (21 cake)))) 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 and restoration %((2f cape) or (((21 cape) OR (21 cake)))) verde %2f sa%cc%sao tiago island%22*.