Perhaps you should try some spelling variations:
"supply chain integration schemes." » "supply chain irrigation schemes.", "supply chain integration some.", "supply chain integration theories.", "supply data integration schemes.", "supply grid integration schemes."
"Supply trade integration policy." » "Supply trade immigration policy.", "Supply trade international policy.", "Supply trade innovation policy."
supply trade » supply side, 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 policy."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration schemes.") OR ("Supply trade integration policy."))*.
• Removing quotes may allow a broader search: (( supply chain integration schemes. ) or ( Supply trade integration policy. ))*.