Perhaps you should try some spelling variations:
"process control statistical methodology." » "process control statistics methodology.", "process control statistical methods.", "procesos control statistical methodology.", "proceso control statistical methodology.", "procesal control statistical methodology."
"social control statistics methods." » "social control estadistico methods.", "social control estadistica methods.", "social century statistics methods.", "social control statistical methods.", "social control statistics methodology."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("process control statistical methodology.") or ("social control statistics methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control statistical methodology.") OR ("social control statistics methods."))*.
• Removing quotes may allow a broader search: (( process control statistical methodology. ) or ( social control statistics methods. ))*.