Perhaps you should try some spelling variations:
"particle accelerationd" » "particle acceleration", "particle accelerations", "particles acceleration"
"particles accelerated" » "particles acceleration", "lattices accelerated", "particle accelerators"
"partially accelerated" » "partially correlated", "partially integrated", "naturally accelerate"
"particle accelerator" » "particle accelerators", "particle acceleration"
"particle acceleraton" » "particle acceleration", "particles acceleration", "particle accelerations"
"particle accelerate" » "particle accelerators", "particle acceleration", "practice accelerate"

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 accelerate") OR ((((((("particle accelerationd") OR ("particles accelerated"))) OR ("partially accelerated"))) OR ("particle acceleraton")))))).
• Removing quotes may allow a broader search: (( particle accelerator ) or ((( particle accelerate ) or ((((((( particle accelerationd ) or ( particles accelerated ))) or ( partially accelerated ))) or ( particle acceleraton )))))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerator") or ((("particle accelerate") or ((((((("particle accelerationd") or ("particles accelerated"))) or ("partially accelerated"))) or ("particle acceleraton"))))))*.