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