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."
"proceso control economics methodology." » "proceso cultural economics methodology.", "proceso contextos economicos methodology.", "process control economics methodology.", "proceso contra economics methodology.", "proceso contralos economics methodology."

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