Perhaps you should try some spelling variations:
"proceso control statistical methodology." » "proceso control statistics methodology.", "proceso control statistical methods.", "proceso contra statistical methodology.", "proceso contralos statistical methodology.", "proces contre statistical methodology."
"process control service methodology." » "process control science methodology.", "process control sciences methodology.", "process control devices methodology.", "procesos control service methodology.", "procesal control service methodology."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("process control service methodology.") or ("proceso control statistical methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control service methodology.") OR ("proceso control statistical methodology.")).
• Removing quotes may allow a broader search: (( process control service methodology. ) or ( proceso control statistical methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("process control service methodology.") or ("proceso control statistical methodology."))*.