Perhaps you should try some spelling variations:
"particle accelerations" » "particle accelerators", "particles acceleration", "particle accelerator", "particle acceleratorss"
"particle acceleration" » "particle accelerators"
"article accelerators" » "particle accelerators", "particle accelerator", "particle acceleraton"

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: (((("article accelerators") OR ("particle accelerations"))) OR ("particle acceleration")).
• Removing quotes may allow a broader search: (((( article accelerators ) or ( particle accelerations ))) or ( particle acceleration )).
• Adding a wildcard symbol may retrieve word variants: (((("article accelerators") or ("particle accelerations"))) or ("particle acceleration"))*.