Perhaps you should try some spelling variations:
"process control sciences methodology." » "process control science methodology.", "process control sciences meteorology.", "process control science ethnology.", "process control civiles methodology.", "process control nociones methodology."
"procesos control statistical methods." » "proceso contra statistical methods.", "procesos contables statistical methods.", "proceso contralos statistical methods.", "procesos control statistics methods.", "procesos 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: (("procesos control statistical methods.") or ("process control sciences methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesos control statistical methods.") OR ("process control sciences methodology."))*.
• Removing quotes may allow a broader search: (( procesos control statistical methods. ) or ( process control sciences methodology. ))*.