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