Perhaps you should try some spelling variations:
"process control estadistica methodology." » "process control statistics methodology.", "process control estadistico methodology.", "process economia estadistica methodology.", "procesos control estadistica methodology.", "proceso control estadistica methodology.", "procesal control estadistica methodology."
"proces control statistical methodology." » "proces control statistics methodology.", "proces control statistical methods.", "proces contre statistical methodology.", "proces contreles statistical methodology.", "proceso contra statistical 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 estadistica methodology.") or ("proces control statistical methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control estadistica methodology.") OR ("proces control statistical methodology.")).
• Removing quotes may allow a broader search: (( process control estadistica methodology. ) or ( proces control statistical methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("process control estadistica methodology.") or ("proces control statistical methodology."))*.