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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("proceso control statistical methodology.") or ("process control estadistico methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("proceso control statistical methodology.") OR ("process control estadistico methods."))*.
• Removing quotes may allow a broader search: (( proceso control statistical methodology. ) or ( process control estadistico methods. ))*.