Perhaps you should try some spelling variations:
"proceso control statistics methodology." » "proceso control semiotics methodology.", "proceso control linguistics methodology.", "proceso control statistical methodology.", "proceso control estadistico methodology.", "proceso control estadistica methodology.", "process control statistics methodology.", "proceso contra statistics methodology.", "proceso contralos statistics methodology."
"procesos tablas estadisticas methods." » "procesos tablas estadisticas metodos.", "procesos tablas statistical methods.", "procesos tablas estadisticas datos.", "procesos las estadisticas methods.", "procesos nuevas estadisticas methods.", "procesos tecnicas estadisticas methods.", "proceso blas estadisticas methods.", "procesos contables estadisticas methods.", "procesos teorias 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: (("proceso control statistics methodology.") or ("procesos tablas estadisticas methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("proceso control statistics methodology.") OR ("procesos tablas estadisticas methods.")).
• Removing quotes may allow a broader search: (( proceso control statistics methodology. ) or ( procesos tablas estadisticas methods. )).
• Adding a wildcard symbol may retrieve word variants: (("proceso control statistics methodology.") or ("procesos tablas estadisticas methods."))*.