Perhaps you should try some spelling variations:
"proceso control statistics methodology." » "proceso control semiotics methodology.", "proceso control linguistics methodology.", "proceso control estadistico methodology.", "proceso control estadistica methodology.", "proceso century statistics methodology.", "proceso contra statistics methodology.", "proceso contralos statistics methodology.", "proces contre statistics methodology."
"process control statistical methods." » "procesos control statistical methods.", "procesal control statistical methods.", "process control estadisticas methods."

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