Perhaps you should try some spelling variations:
"supply chain integrating policies." » "supply chain integration policies.", "supply chain integrated policies.", "supply chain integrating positive.", "supply china integrating policies.", "supply change integrating policies."
"supply anti immigration policies." » "supply anti immigration policy.", "supply anti migration policy.", "supply net immigration policies.", "supply _ immigration policies.", "supply mass immigration policies.", "supply ann immigration policies."

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

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