Perhaps you should try some spelling variations:
"procesos control statistical methodology." » "procesos control statistics methodology.", "procesos control statistical methods.", "process control statistical methodology.", "proceso contra statistical methodology.", "proceso contralos statistical methodology."
"procesos contables science ethnology." » "procesos sociales science ethnology.", "procesos penales science ethnology.", "procesos contables science methodology.", "procesos contables science sociology.", "procesos contables science biotechnology."

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 control statistical methodology.") OR ("procesos contables science ethnology."))~.
• Removing quotes may allow a broader search: (( procesos control statistical methodology. ) or ( procesos contables science ethnology. ))~.
• Adding a wildcard symbol may retrieve word variants: (("procesos control statistical methodology.") or ("procesos contables science ethnology."))*.