Perhaps you should try some spelling variations:
"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."
"supply large international prices." » "supply care international prices.", "supply change international prices.", "supply three international prices.", "supply charges international prices.", "supply targets international prices.", "supply curve international prices.", "supply large international price."

Try widening your search to All Fields.

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

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