Perhaps you should try some spelling variations:
"proceso contra estadistica methodology." » "proceso contra statistics methodology.", "proceso control estadistica methodology.", "proceso control estadistico methodology.", "proceso cultura estadistica methodology."
"process control service methodology." » "process control science methodology.", "process control sciences methodology.", "process control devices methodology.", "procesos control service methodology.", "procesal control service 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 service methodology.") or ("proceso contra estadistica methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control service methodology.") OR ("proceso contra estadistica methodology.")).
• Removing quotes may allow a broader search: (( process control service methodology. ) or ( proceso contra estadistica methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("process control service methodology.") or ("proceso contra estadistica methodology."))*.