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 linguistics methodology." » "proceso contact linguistics methodology.", "proceso corpora linguistics methodology.", "proceso cultura linguistica methodology.", "process control linguistics methodology."

You may be able to get more results by adjusting your search query.

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