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 statistical estudios." » "proceso contra estadistica estudios.", "proceso contra artisticas estudios.", "proceso control statistical estudios.", "process control statistical estudios."

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