Perhaps you should try some spelling variations:
"supply chains integration policies." » "supply chains international policies.", "supply chains migration policies.", "supply chains innovation policies.", "supply chain integration policies.", "supply china's integration policies.", "supply channel integration policies."
"supply chains immigration policies." » "supply chains immigration policy.", "supply chains migration policy.", "supply chinese immigration policies.", "supply chain migration policies.", "supply chain integration policies.", "supply chain immigration 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 chains integration policies.") or ("supply chains immigration policies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chains integration policies.") OR ("supply chains immigration policies."))*.
• Removing quotes may allow a broader search: (( supply chains integration policies. ) or ( supply chains immigration policies. ))*.