Perhaps you should try some spelling variations:
"proces contre statistical methodology." » "proces contre statistics methodology.", "proces contre statistical methods.", "proces control statistical methodology.", "proceso contra statistical methodology.", "proces contreles statistical methodology.", "voces contra statistical methodology."
"process control estadistico methods." » "process control statistical methods.", "process control estadisticas metodos."

You may be able to get more results by adjusting your search query.

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