Perhaps you should try some spelling variations:
"supply chain integration schemes." » "supply chain integration schengen.", "supply chain irrigation schemes.", "supply chain integration regimes."
"Supply trade integration south." » "Supply trade integration study.", "Supply trade integration some.", "Supply trade integration social."
supply trade » supply case

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply chain integration schemes.") or ("Supply trade integration south."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration schemes.") OR ("Supply trade integration south."))*.
• Removing quotes may allow a broader search: (( supply chain integration schemes. ) or ( Supply trade integration south. ))*.