Perhaps you should try some spelling variations:
"procesos control estadistico methodology." » "procesos control statistics methodology.", "procesos control statistical methodology.", "process control estadistico methodology.", "proceso contra estadistico methodology.", "procesos contables estadistico methodology."
"proceso control values methodology." » "proceso control based methodology.", "proceso control policies methodology.", "process control values methodology.", "proceso contra values methodology.", "proceso contralos values methodology.", "proceso control andes methodology.", "proceso control cafes 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: (("procesos control estadistico methodology.") OR ("proceso control values methodology."))~.
• Removing quotes may allow a broader search: (( procesos control estadistico methodology. ) or ( proceso control values methodology. ))~.
• Adding a wildcard symbol may retrieve word variants: (("procesos control estadistico methodology.") or ("proceso control values methodology."))*.