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