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