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 control estadistica methods." » "proceso control estadistico methods.", "proceso economia estadistica methods.", "proceso control estadisticas metodos.", "proceso control statistical methods.", "proceso control estadisticas medicas.", "proceso contra estadistica methods.", "proceso contralos estadistica methods.", "proces contre 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 control estadistica methods."))~.
• Removing quotes may allow a broader search: (( process control statistical methodology. ) or ( proceso control estadistica methods. ))~.
• Adding a wildcard symbol may retrieve word variants: (("process control statistical methodology.") or ("proceso control estadistica methods."))*.