Perhaps you should try some spelling variations:
"Tourism social science overview" » "Tourism social science review", "Tourism social service overview", "Tourism social change overview", "Tourism social sciences overview"
"tourism social science series" » "tourism social sciences series", "tourism social science services", "tourism social science stories", "tourism social science theories"

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: (("tourism social science series") OR ("Tourism social science overview")).
• Removing quotes may allow a broader search: (( tourism social science series ) or ( Tourism social science overview )).
• Adding a wildcard symbol may retrieve word variants: (("tourism social science series") or ("Tourism social science overview"))*.