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