Perhaps you should try some spelling variations:
"programming software semiotics methodology." » "programming software statistics methodology.", "programming software economics methodology.", "programming software service methodology."
"process control statistical methods." » "process control statistics methods.", "process 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: (("programming software semiotics methodology.") OR ("process control statistical methods."))~.
• Removing quotes may allow a broader search: (( programming software semiotics methodology. ) or ( process control statistical methods. ))~.
• Adding a wildcard symbol may retrieve word variants: (("programming software semiotics methodology.") or ("process control statistical methods."))*.