Perhaps you should try some spelling variations:
"state schools surveys." » "state schools serve.", "small schools surveys."
"motor skills series." » "motor skills surveys.", "motor skills survey.", "labor skills series."
"math point surveys." » "math patient surveys.", "math point sources.", "math soil surveys."
"math phone surveys." » "math phone survey."
"smart school surveys." » "start school surveys.", "small school surveys.", "small schools surveys."
"math school survey." » "small school survey.", "haiti school survey.", "state school survey."
"map school surveys." » "a school surveys.", "day school surveys.", "can school surveys."

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 ((((("math point surveys.") or ("math phone surveys."))) or ((((((((("smart school surveys.") or ("math school survey."))) or ("high school surveys."))) or ("map school surveys."))) or ("state schools surveys."))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("motor skills series.") OR ((((("math point surveys.") OR ("math phone surveys."))) OR ((((((((("smart school surveys.") OR ("math school survey."))) OR ("high school surveys."))) OR ("map school surveys."))) OR ("state schools surveys.")))))).
• Removing quotes may allow a broader search: (( motor skills series. ) or ((((( math point surveys. ) or ( math phone surveys. ))) or ((((((((( smart school surveys. ) or ( math school survey. ))) or ( high school surveys. ))) or ( map school surveys. ))) or ( state schools surveys. )))))).
• Adding a wildcard symbol may retrieve word variants: (("motor skills series.") or ((((("math point surveys.") or ("math phone surveys."))) or ((((((((("smart school surveys.") or ("math school survey."))) or ("high school surveys."))) or ("map school surveys."))) or ("state schools surveys."))))))*.