Perhaps you should try some spelling variations:
"particle accelerated" » "particles accelerated", "particle accelerator", "particle accelerators", "particles acceleratedd", "particle acceleratord", "particle acceleratorsd"
"particle acceleraton" » "particle acceleration", "particle accelerator", "particles acceleration"
"particle accelerate" » "particles accelerated", "particle accelerator", "particle accelerators"

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