Perhaps you should try some spelling variations:
"process control estadistico methodology." » "process control statistics methodology.", "process control statistical methodology.", "procesos control estadistico methodology.", "procesal control estadistico methodology."
"proceso control values methodology." » "proceso control based methodology.", "proceso control policies methodology.", "proceso contra values methodology.", "proceso contralos values methodology.", "proces contre values methodology.", "proceso control andes methodology.", "proceso control cafes methodology."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"process control estadistico methodology.\") OR (\"proceso control values methodology.\"))~".
• Removing quotes may allow a broader search: (( process control estadistico methodology. ) OR ( proceso control values methodology. ))~.
• Adding a wildcard symbol may retrieve word variants: (("process control estadistico methodology.") OR ("proceso control values methodology."))*.