Perhaps you should try some spelling variations:
"supply mass immigration policies." » "supply mass immigration policy.", "supply mass migration policy.", "supply mass migration policies.", "supply _ immigration policies.", "supply case immigration policies.", "supply main immigration policies.", "supply many immigration policies."
"supply some international aid." » "supply time international aid.", "supply care international aid.", "supply people international aid.", "supply some international airshow.", "supply some international airport.", "supply side international aid.", "supply cote international aid.", "supply scheme international aid."

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

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