Perhaps you should try some spelling variations:
"supply chain integration policies." » "supply chain immigration policies.", "supply chain international policies.", "supply chain migration policies.", "supply trade integration policies.", "supply data integration policies.", "supply grid integration policies."
"supply urban integration schemes." » "supply urban irrigation schemes.", "supply urban integration some.", "supply urban integration theories.", "supply european integration schemes.", "supply global integration schemes.", "supply trade integration schemes.", "supply rural integration schemes."

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 policies.") or ("supply urban integration schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration policies.") OR ("supply urban integration schemes.")).
• Removing quotes may allow a broader search: (( supply chain integration policies. ) or ( supply urban integration schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("supply chain integration policies.") or ("supply urban integration schemes."))*.