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

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 accelerator"))) OR ("particle acceleraton")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"particle accelerate\") or (((((\"particle accelerated\") OR (\"particle accelerator\"))) or (\"particle acceleraton\"))))".
• Removing quotes may allow a broader search: (( particle accelerate ) or ((((( particle accelerated ) OR ( particle accelerator ))) or ( particle acceleraton )))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerate") or ((((("particle accelerated") OR ("particle accelerator"))) or ("particle acceleraton"))))*.