Perhaps you should try some spelling variations:
"procesos control statistical methodology." » "procesos control statistics methodology.", "procesos control statistical methods.", "process control statistical methodology.", "procesos contables statistical methodology.", "proceso contralos statistical methodology."
"proceso contra estadistica methods." » "proceso contra estadisticas metodos.", "proceso contra statistical methods.", "proceso contra estadisticas medicas.", "proceso control estadistica methods.", "proceso control estadistico methods.", "proceso cultura estadistica methods.", "process control 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 ("proceso contra estadistica methods."))~.
• Removing quotes may allow a broader search: (( procesos control statistical methodology. ) or ( proceso contra estadistica methods. ))~.
• Adding a wildcard symbol may retrieve word variants: (("procesos control statistical methodology.") or ("proceso contra estadistica methods."))*.