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