Perhaps you should try some spelling variations:
"particles accelerated" » "particles acceleration", "particle accelerator", "partially accelerated"
"particle acceleratond" » "particle acceleraton", "particle accelerations", "particle acceleration"
"particle accelerate" » "particle accelerator", "particle acceleraton", "particle acceleration"
"particle accelerators" » "particle accelerator", "particle acceleration", "particle accelerating"

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