Perhaps you should try some spelling variations:
"proceso contra statistics methodology." » "proceso contra semiotics methodology.", "proceso contra linguistics methodology.", "proceso century statistics methodology.", "proceso control statistical methodology.", "process control statistics methodology."
"procesos control statistics methods." » "procesos control statistical methods.", "procesos control estadistico methods.", "procesos control estadistica methods.", "process control statistics methods.", "procesos contables statistics methods.", "proceso contralos statistics methods."

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: (("procesos control statistics methods.") OR ("proceso contra statistics methodology."))~.
• Removing quotes may allow a broader search: (( procesos control statistics methods. ) or ( proceso contra statistics methodology. ))~.
• Adding a wildcard symbol may retrieve word variants: (("procesos control statistics methods.") or ("proceso contra statistics methodology."))*.