Perhaps you should try some spelling variations:
"particle accelerators" » "article accelerators", "particle accelerator", "particle accelerate", "particle accelerating"
"particle accelerations" » "article accelerations", "particle accelerating", "particle accelerator", "particle accelerates"
"particles accelerated" » "articles accelerated"
"particle acceleraton" » "article acceleraton", "particle accelerator", "particle accelerato", "particle acceleratoren"
"partially accelerated" » "partial accelerated"
"pareticle acceleration" » "partticle acceleration", "paretische acceleration", "article acceleration", "pareticle 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 accelerators") OR ((("particle accelerations") OR ((((("particles accelerated") OR ("partially accelerated"))) OR ((("particle acceleraton") OR ("pareticle acceleration")))))))).
• Removing quotes may allow a broader search: (( particle accelerators ) or ((( particle accelerations ) or ((((( particles accelerated ) or ( partially accelerated ))) or ((( particle acceleraton ) or ( pareticle acceleration )))))))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerators") or ((("particle accelerations") or ((((("particles accelerated") or ("partially accelerated"))) or ((("particle acceleraton") or ("pareticle acceleration"))))))))*.