Perhaps you should try some spelling variations:
"process control service methodology." » "process control sciences methodology.", "process control devices methodology.", "procesos control service methodology.", "procesal control service methodology."
"proceso contralos science methodology." » "proceso contralos sciences meteorology.", "proceso contralos science anthropology.", "proceso contra science methodology.", "proces contreles science methodology.", "procesos contables science methodology."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control service methodology.") OR ("proceso contralos science methodology."))~.
• Removing quotes may allow a broader search: (( process control service methodology. ) or ( proceso contralos science methodology. ))~.
• Adding a wildcard symbol may retrieve word variants: (("process control service methodology.") or ("proceso contralos science methodology."))*.