Perhaps you should try some spelling variations:
"process control statistical methodology." » "process control statistics methodology.", "process control statistical methods.", "procesos control statistical methodology.", "proceso control statistical methodology.", "procesal control statistical methodology."
"proces contextos linguistics methodology." » "proces contextos linguisticos methodology.", "proces contexto linguistico methodology.", "proces contacto linguistico methodology.", "proceso textos linguistics methodology.", "problemas contextos linguistics methodology.", "proceso contralos linguistics 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 ("proces contextos linguistics methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control statistical methodology.") OR ("proces contextos linguistics methodology.")).
• Removing quotes may allow a broader search: (( process control statistical methodology. ) or ( proces contextos linguistics methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("process control statistical methodology.") or ("proces contextos linguistics methodology."))*.