Perhaps you should try some spelling variations:
"partially accelerated" » "partially correlated", "partially integrated", "naturally accelerate"
"vertically integrated" » "vertical integration"
"particle acceleraton" » "particles acceleration", "particle accelerations", "pareticle 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 ((("partially accelerated") OR ("vertically integrated"))))) OR ("particle acceleraton")))))).
• Removing quotes may allow a broader search: (( particle accelerator ) or ((( particle accelerators ) or ((((( particle acceleration ) or ((( partially accelerated ) or ( vertically integrated ))))) or ( particle acceleraton )))))).
• Adding a wildcard symbol may retrieve word variants: (("particle accelerator") or ((("particle accelerators") or ((((("particle acceleration") or ((("partially accelerated") or ("vertically integrated"))))) or ("particle acceleraton"))))))*.