Perhaps you should try some spelling variations:
"proceso control statistical methodology." » "proceso control statistics methodology.", "proceso control statistical methods.", "process control statistical methodology.", "proceso contralos statistical methodology.", "proces contre statistical methodology."
"proceso contra based methodology." » "proceso contra values methodology.", "proceso contra law methodology.", "proceso contra proposed methodology.", "process control based methodology.", "proceso contra las methodology.", "proceso contra blas methodology.", "proceso contra clase methodology."

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