Perhaps you should try some spelling variations:
"building and surveys surveys" » "building and surveys survey", "building and survey surveys", "building and surveying surveys"
"building and survey sources" » "building and survey survey", "building and survey studies", "building and surfaces sources"

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: (("building and survey sources") OR ("building and surveys surveys")).
• Removing quotes may allow a broader search: (( building and survey sources ) or ( building and surveys surveys )).
• Adding a wildcard symbol may retrieve word variants: (("building and survey sources") or ("building and surveys surveys"))*.