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

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesos control statistical methodology.") OR ("procesos control estadistica methods."))~.
• Removing quotes may allow a broader search: (( procesos control statistical methodology. ) or ( procesos control estadistica methods. ))~.
• Adding a wildcard symbol may retrieve word variants: (("procesos control statistical methodology.") or ("procesos control estadistica methods."))*.