Perhaps you should try some spelling variations:
"particles accelerated" » "particles acceleration", "particle accelerator", "partially accelerated"
"particle acceleraton" » "particle acceleration", "particle accelerator", "particles acceleration"
"particle accelerators" » "particle accelerator", "particle accelerate", "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 accelerators") OR ((("particles accelerated") OR ("particle acceleraton")))).
• Removing quotes may allow a broader search: (( particle accelerators ) or ((( particles accelerated ) or ( particle acceleraton )))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerators") or ((("particles accelerated") or ("particle acceleraton"))))*.