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