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