Perhaps you should try some spelling variations:
"procesos control estadisticas methods." » "procesos control estadisticas metodos.", "procesos control statistical methods.", "procesos control estadisticas datos.", "procesos control estadistica methods.", "procesos control estadistico methods.", "process control estadisticas methods.", "proceso contra estadisticas methods.", "procesos contables estadisticas methods."
"proceso vital statistics methods." » "proceso vital statistical methods.", "proceso vital statistics methodology.", "proceso medical statistics methods.", "proceso state statistics methods.", "proceso digital statistics methods.", "proceso penal statistics methods.", "proceso civil 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: (("proceso vital statistics methods.") or ("procesos control estadisticas methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("proceso vital statistics methods.") OR ("procesos control estadisticas methods.")).
• Removing quotes may allow a broader search: (( proceso vital statistics methods. ) or ( procesos control estadisticas methods. )).
• Adding a wildcard symbol may retrieve word variants: (("proceso vital statistics methods.") or ("procesos control estadisticas methods."))*.