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 estadistica methods." » "process control estadistico methods.", "process control statistical methods.", "process economia estadistica methods.", "process control estadisticas metodos.", "process control estadisticas medicas."

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