Perhaps you should try some spelling variations:
"process control statistical methodology." » "process control statistical methods.", "proceso control statistical methodology.", "procesal control statistical methodology."
"procesos contables statistics methodology." » "procesos contables semiotics methodology.", "procesos contables linguistics methodology.", "procesos states statistics methodology.", "procesos sociales statistics methodology.", "procesos penales 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 ("procesos contables statistics methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control statistical methodology.") OR ("procesos contables statistics methodology."))*.
• Removing quotes may allow a broader search: (( process control statistical methodology. ) or ( procesos contables statistics methodology. ))*.