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