Perhaps you should try some spelling variations:
"proces serie linguistica methodology." » "proces serie linguistics methodology.", "proces serie linguistica metodologia.", "proces de linguistica methodology.", "proces en linguistica methodology.", "proces temas linguistica methodology.", "procesos serie linguistica methodology.", "proceso sergio linguistica methodology.", "artes serie linguistica methodology."
"process control statistical methods." » "process control statistics methods.", "process control estadisticas methods."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("proces serie linguistica methodology.") or ("process control statistical methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("proces serie linguistica methodology.") OR ("process control statistical methods.")).
• Removing quotes may allow a broader search: (( proces serie linguistica methodology. ) or ( process control statistical methods. )).
• Adding a wildcard symbol may retrieve word variants: (("proces serie linguistica methodology.") or ("process control statistical methods."))*.