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