Perhaps you should try some spelling variations:
"particles acceleration" » "particle accelerators", "parallel acceleration", "particles application"
"particle acceleration" » "particle accelerators"
"partially accelerated" » "partially correlated", "partially integrated", "naturally accelerate"
"particle accelerator" » "particle accelerators"
"particle accelerated" » "particles accelerated", "particle accelerators", "practice accelerated"
"particle acceleraton" » "particle accelerations", "pareticle acceleration", "particle accelerators"

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 ((((("particles acceleration") OR ("particle acceleration"))) OR ((((("particle accelerated") OR ("partially accelerated"))) OR ("particle acceleraton")))))).
• Removing quotes may allow a broader search: (( particle accelerator ) or ((((( particles acceleration ) or ( particle acceleration ))) or ((((( particle accelerated ) or ( partially accelerated ))) or ( particle acceleraton )))))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerator") or ((((("particles acceleration") or ("particle acceleration"))) or ((((("particle accelerated") or ("partially accelerated"))) or ("particle acceleraton"))))))*.