Perhaps you should try some spelling variations:
"procesos contables statistical methods." » "procesos control statistical methods.", "procesos sociales statistical methods.", "procesos penales statistical methods."
"process control estadistica metodos." » "process control estadistico metodos.", "process control statistical metodos.", "process economia estadistica metodos.", "process control estadisticas metodos.", "process control estadistica estudios.", "process control estadistica modelado."

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