Perhaps you should try some spelling variations:
"motor skills surveys." » "motor skills survey.", "motor soil surveys.", "labor skills surveys."
"haiti school surveys." » "high school surveys.", "ii school surveys.", "iii school surveys."
"math site surveys." » "math firm surveys."
"small school survey." » "small schools survey."
"math social surveys." » "cash social surveys.", "data social surveys.", "health 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: (("motor skills surveys.") OR ((((((("haiti school surveys.") OR ("math social surveys."))) OR ("math site surveys."))) OR ("small school survey."))))~.
• Removing quotes may allow a broader search: (( motor skills surveys. ) or ((((((( haiti school surveys. ) or ( math social surveys. ))) or ( math site surveys. ))) or ( small school survey. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("motor skills surveys.") or ((((((("haiti school surveys.") or ("math social surveys."))) or ("math site surveys."))) or ("small school survey."))))*.