Perhaps you should try some spelling variations:
"proceso control statistical methodology." » "proceso control statistics methodology.", "proceso control statistical methods.", "process control statistical methodology.", "proceso contra statistical methodology.", "proceso contralos statistical methodology."
"procesal control policies methodology." » "procesal control values methodology.", "process control policies methodology.", "social control policies methodology.", "proceso contra policies methodology.", "procesal control politico methodology.", "procesal control political methodology.", "procesal cultural policies methodology."

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

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