Perhaps you should try some spelling variations:
"process control statistical methodology." » "process control statistics methodology.", "process control statistical methods.", "procesos control statistical methodology.", "procesal control statistical methodology."
"proceso control civiles methodology." » "proceso control sciences methodology.", "proceso control values methodology.", "proceso control criticism methodology.", "proceso contra civiles methodology.", "proceso contralos civiles methodology.", "proces contre civiles methodology.", "proceso control civil methodology.", "proceso contratos civiles methodology."

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: (("process control statistical methodology.") OR ("proceso control civiles methodology."))~.
• Removing quotes may allow a broader search: (( process control statistical methodology. ) or ( proceso control civiles methodology. ))~.
• Adding a wildcard symbol may retrieve word variants: (("process control statistical methodology.") or ("proceso control civiles methodology."))*.