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

Try widening your search to All Fields.

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