Perhaps you should try some spelling variations:
social surveys » topical surveys
skills series » skills surveys, skills service, skills studies
point surveys » patient surveys, phone surveys
motor skills » labor skills
other social » power social
poor point » power point, four point, poor count

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( motor skills series. ) or ((( poor point surveys. ) or ( other social surveys. ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( motor skills series. ) OR ((( poor point surveys. ) OR ( other social surveys. )))).
• Adding a wildcard symbol may retrieve word variants: (( motor skills series. ) or ((( poor point surveys. ) or ( other social surveys. ))))*.