Perhaps you should try some spelling variations:
"smart skills surveys." » "smart skills survey.", "soft skills surveys.", "what skills surveys."
"sport social surveys." » "sport topical surveys.", "sports social surveys.", "support social surveys.", "post social surveys."
"report social surveys." » "report topical surveys.", "resort social surveys.", "reported social surveys.", "support social surveys."

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: (("smart skills surveys.") OR ((("sport social surveys.") OR ("report social surveys."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"smart skills surveys.\") or (((\"sport social surveys.\") OR (\"report social surveys.\"))))~".
• Removing quotes may allow a broader search: (( smart skills surveys. ) or ((( sport social surveys. ) OR ( report social surveys. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("smart skills surveys.") or ((("sport social surveys.") OR ("report social surveys."))))*.