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