Perhaps you should try some spelling variations:
"process control statistical methodology." » "process control statistics methodology.", "process control statistical methods.", "procesos control statistical methodology.", "procesal control statistical methodology."
"proceso contralos estadistica methods." » "proceso control estadistica methods.", "proceso control estadistico methods.", "proceso hoteles estadistica methods.", "proceso contralos estadisticas metodos.", "proceso contralos statistical methods.", "proceso contralos estadisticas medicas.", "proceso contra estadistica methods.", "proces contreles estadistica methods.", "procesos contables estadistica methods."

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