Perhaps you should try some spelling variations:
"supply china immigration policies." » "supply china immigration policy.", "supply china migration policy.", "supply china integration policies.", "supply child migration policies.", "supply national immigration policies.", "supply chains immigration policies.", "supply chain immigration policies."
"supply cote integration efforts." » "supply cote international efforts.", "supply cote conservation efforts.", "supply care integration efforts.", "supply content integration efforts.", "supply power integration efforts.", "supply costs integration efforts.", "supply cost integration efforts.", "supply case integration efforts."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply china immigration policies.") OR ("supply cote integration efforts."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply china immigration policies.\") OR (\"supply cote integration efforts.\"))*".
• Removing quotes may allow a broader search: (( supply china immigration policies. ) OR ( supply cote integration efforts. ))*.