Perhaps you should try some spelling variations:
"procesal control statistical methodology." » "procesal control statistical methods.", "process control statistical methodology.", "social control statistical methodology.", "proceso contra statistical methodology."
"problemas contextos statistics methodology." » "problemas contextos semiotics methodology.", "problemas contextos linguistics methodology.", "problemas contextos museisticos methodology.", "problemas contexto artistico methodology.", "problemas concretos statistics methodology.", "problemas candentes statistics methodology.", "problemas internos statistics methodology."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("procesal control statistical methodology.") or ("problemas contextos statistics methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesal control statistical methodology.") OR ("problemas contextos statistics methodology.")).
• Removing quotes may allow a broader search: (( procesal control statistical methodology. ) or ( problemas contextos statistics methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("procesal control statistical methodology.") or ("problemas contextos statistics methodology."))*.