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