Perhaps you should try some spelling variations:
"process control service methodology." » "process control science methodology.", "process control sciences methodology.", "process control devices methodology.", "procesos control service methodology.", "proceso control service methodology.", "procesal control service methodology."
"proces contre statistical methods." » "proces control statistical methods.", "proceso contra statistical methods.", "proces contreles statistical methods.", "voces contra 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 service methodology.") or ("proces contre statistical methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control service methodology.") OR ("proces contre statistical methods."))*.
• Removing quotes may allow a broader search: (( process control service methodology. ) or ( proces contre statistical methods. ))*.