Perhaps you should try some spelling variations:
"procesos penales statistics methods." » "procesos penales statistics methodology.", "procesos health statistics methods.", "procesos states statistics methods.", "proceso penal statistics methods.", "procesos contables statistics methods.", "procesos sociales statistics methods."
"procesos control statistical methods." » "process control statistical methods.", "proceso contra statistical methods.", "procesos contables statistical methods.", "procesos control estadisticas methods."

Try widening your search to All Fields.

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

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