Perhaps you should try some spelling variations:
"process control estadistico methodology." » "process control statistics methodology.", "process control statistical methodology.", "procesos control estadistico methodology.", "procesal control estadistico methodology."
"proceso control devices methodology." » "proceso control service methodology.", "proceso control policies methodology.", "proceso control mexico methodology.", "proceso contra devices methodology.", "proceso contralos devices methodology.", "proces contre devices methodology.", "proceso control 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 estadistico methodology.") OR ("proceso control devices methodology."))~.
• Removing quotes may allow a broader search: (( process control estadistico methodology. ) or ( proceso control devices methodology. ))~.
• Adding a wildcard symbol may retrieve word variants: (("process control estadistico methodology.") or ("proceso control devices methodology."))*.