Perhaps you should try some spelling variations:
"particle accelerations" » "particle accelerators", "particles acceleration", "particle concentrations", "particle acceleratorss"
"particle acceleration" » "particle accelerators"
"particle accelerator" » "particle accelerators"
"particle accelerated" » "particles accelerated", "particle acceleraton", "particle accelerators"
"partially correlated" » "spatially correlated", "serially correlated", "partially connected"

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: (("particle accelerator") OR ((("particle accelerations") OR ((((("particle accelerated") OR ("partially correlated"))) OR ("particle acceleration")))))).
• Removing quotes may allow a broader search: (( particle accelerator ) or ((( particle accelerations ) or ((((( particle accelerated ) or ( partially correlated ))) or ( particle acceleration )))))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerator") or ((("particle accelerations") or ((((("particle accelerated") or ("partially correlated"))) or ("particle acceleration"))))))*.