Perhaps you should try some spelling variations:
"particle accelerations" » "particle acceleration", "particles acceleration", "particle concentrations"
"particle accelerating" » "particle acceleration", "particle acceleraton", "particles acceleration"
"particles application" » "particular application", "partial application", "principles application"
"particle accelerator" » "particle acceleration"
"particle accelerators" » "particle accelerations", "particle accelerated", "particle acceleration"
"particle accelerate" » "particles accelerated", "particle acceleraton", "particle acceleration"

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 accelerate") OR ((("particle accelerator") OR ((((("particle accelerating") OR ("particle accelerations"))) OR ((("particles application") OR ("particle accelerators")))))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"particle accelerate\") or (((\"particle accelerator\") or (((((\"particle accelerating\") OR (\"particle accelerations\"))) or (((\"particles application\") or (\"particle accelerators\"))))))))".
• Removing quotes may allow a broader search: (( particle accelerate ) or ((( particle accelerator ) or ((((( particle accelerating ) OR ( particle accelerations ))) or ((( particles application ) or ( particle accelerators )))))))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerate") or ((("particle accelerator") or ((((("particle accelerating") OR ("particle accelerations"))) or ((("particles application") or ("particle accelerators"))))))))*.