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