Perhaps you should try some spelling variations:
"particle accelerated" » "particles accelerated", "partially accelerated", "practice accelerated", "particles acceleratedd", "particles accelerationd"
"particle acceleraton" » "particles acceleration", "particle accelerations", "pareticle acceleration"
"particle accelerate" » "particles accelerated", "practice accelerate", "particles acceleration"
"particle accelerators" » "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 accelerator") OR ((((("particle accelerators") OR ((("particle accelerate") OR ("particle acceleration"))))) OR ((("particle accelerated") OR ("particle acceleraton")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"particle accelerator\") or (((((\"particle accelerators\") or (((\"particle accelerate\") OR (\"particle acceleration\"))))) or (((\"particle accelerated\") or (\"particle acceleraton\"))))))".
• Removing quotes may allow a broader search: (( particle accelerator ) or ((((( particle accelerators ) or ((( particle accelerate ) OR ( particle acceleration ))))) or ((( particle accelerated ) or ( particle acceleraton )))))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerator") or ((((("particle accelerators") or ((("particle accelerate") OR ("particle acceleration"))))) or ((("particle accelerated") or ("particle acceleraton"))))))*.