Perhaps you should try some spelling variations:
"supply chain integration theories." » "supply chain integration theorems.", "supply chain integrationstheorie 2.", "supply chain integration theory."
"supply cote integration schemes." » "supply cote integration schengen.", "supply cote irrigation schemes.", "supply cote integration regimes.", "supply care integration schemes.", "supply content integration schemes.", "supply scale integration schemes.", "supply costs integration schemes.", "supply cost integration schemes.", "supply case integration schemes."

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: (("supply chain integration theories.") OR ("supply cote integration schemes."))~.
• Removing quotes may allow a broader search: (( supply chain integration theories. ) or ( supply cote integration schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply chain integration theories.") or ("supply cote integration schemes."))*.