Perhaps you should try some spelling variations:
"supply chain integration efforts." » "supply chain international efforts.", "supply chain conservation efforts.", "supply trade integration efforts.", "supply data integration efforts.", "supply grid integration efforts."
"supply change migration policies." » "supply change immigration policies.", "supply change migration policy.", "supply change education policies.", "supply change mitigation policies.", "supply managed migration policies.", "supply charges migration policies.", "supply chains migration policies.", "supply case migration policies."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply change migration policies.") or ("supply chain integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply change migration policies.") OR ("supply chain integration efforts.")).
• Removing quotes may allow a broader search: (( supply change migration policies. ) or ( supply chain integration efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("supply change migration policies.") or ("supply chain integration efforts."))*.