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

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: (("process control semiotics methodology.") OR ("proces control statistical methods."))~.
• Removing quotes may allow a broader search: (( process control semiotics methodology. ) or ( proces control statistical methods. ))~.
• Adding a wildcard symbol may retrieve word variants: (("process control semiotics methodology.") or ("proces control statistical methods."))*.