Perhaps you should try some spelling variations:
2f conservation » 2.1 conservation, 2.2 conservation, 2.7 conservation
20 conservation » 10 conservation, 2.1 conservation, 9 conservation
kato tiago » bastos tiago, santos tiago
sao tiago » san tiago, joao tiago, santos tiago
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: %((historical buildings) OR (historic buildings)) %((2f conservation) OR (20 conservation)) AND restoration %2f cape verde %2f sa%cc%((((kato tiago) OR (gati tiago))) OR (sao tiago)) island%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((historical buildings) or (historic buildings)) %((2f conservation) OR (20 conservation)) and restoration %2f cape verde %2f sa%cc%((((kato tiago) or (gati tiago))) or (sao tiago)) island%22".
• Adding a wildcard symbol may retrieve word variants: %((historical buildings) or (historic buildings)) %((2f conservation) OR (20 conservation)) and restoration %2f cape verde %2f sa%cc%((((kato tiago) or (gati tiago))) or (sao tiago)) island%22*.