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

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 ("motor skills surveys."))) or ((("math point surveys.") or ((((("math school surveys.") or ("map school surveys."))) or ("start school surveys."))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("motor skills series.") OR ("motor skills surveys."))) OR ((("math point surveys.") OR ((((("math school surveys.") OR ("map school surveys."))) OR ("start school surveys.")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"motor skills series.\") OR (\"motor skills surveys.\"))) or (((\"math point surveys.\") or (((((\"math school surveys.\") or (\"map school surveys.\"))) or (\"start school surveys.\"))))))".
• Removing quotes may allow a broader search: (((( motor skills series. ) OR ( motor skills surveys. ))) or ((( math point surveys. ) or ((((( math school surveys. ) or ( map school surveys. ))) or ( start school surveys. )))))).
• Adding a wildcard symbol may retrieve word variants: (((("motor skills series.") OR ("motor skills surveys."))) or ((("math point surveys.") or ((((("math school surveys.") or ("map school surveys."))) or ("start school surveys."))))))*.