Perhaps you should try some spelling variations:
"proceso control sciences methodology." » "proceso control science methodology.", "proceso control sciences meteorology.", "proceso control science ethnology.", "proceso control civiles methodology.", "proceso control nociones methodology.", "proceso contra sciences methodology.", "proceso contralos sciences methodology.", "proces contre sciences methodology."
"process control statistical methods." » "procesos control statistical methods.", "procesal control statistical methods.", "process control statistics methods.", "process control estadisticas methods."

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 methods.") or ("proceso control sciences methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control statistical methods.") OR ("proceso control sciences methodology."))*.
• Removing quotes may allow a broader search: (( process control statistical methods. ) or ( proceso control sciences methodology. ))*.