Perhaps you should try some spelling variations:
"social control semiotics methodology." » "social control statistics methodology.", "social control economics methodology.", "social control service methodology."
"procesal control statistical methods." » "process control statistical methods.", "proceso contra statistical methods.", "proces contre statistical methods.", "procesal control statistics methods.", "procesal control estadisticas methods."

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