Perhaps you should try some spelling variations:
22summary buildings » summary5 building
summary buildings » summary5 building, summary findings, summary guiding
2f conservation » 20 conservation, 21 conservation, 2.1 conservation
tobago island » tobago iceland, tobago ireland, tiago island
2f cape » 2 cape, 21 cape, off cape
2f a » 2fa a, e2f a, h2f a

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: %((((22summary buildings) OR (summary buildings))) OR (summary building)) %2f conservation AND restoration %2f cape verde %2f a%cc%83o tobago island%22.
• Adding a wildcard symbol may retrieve word variants: %((((22summary buildings) or (summary buildings))) or (summary building)) %2f conservation and restoration %2f cape verde %2f a%cc%83o tobago island%22*.