Perhaps you should try some spelling variations:
"procesal control estadisticas methods." » "procesal control estadistica methods.", "procesal control estadistico methods.", "procesal control statistical methods.", "procesal control estadisticas metodos.", "procesal control estadisticas datos.", "process control estadisticas methods.", "social control estadisticas methods.", "proceso contra estadisticas methods."
"procesos control statistics methods." » "procesos control statistical methods.", "procesos control estadistico methods.", "procesos control estadistica methods.", "procesos control statistics methodology.", "process control statistics methods.", "proceso contra statistics methods.", "procesos contables statistics methods."

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

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