Perhaps you should try some spelling variations:
"support policy integration policies." » "support policy immigration policies.", "support policy international policies.", "support policy migration policies.", "support policy intervention policies.", "support social integration policies.", "support policy interventions policies.", "support policies integration policies.", "import policy integration policies."
"supply anti immigration policy." » "supply anti migration policy.", "supply net immigration policy.", "supply _ immigration policy.", "supply mass immigration policy."

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