Perhaps you should try some spelling variations:
immigration policies » immigration policy, migration policy
integrated policies » integration policies, integrating policies, integrated policy
race immigration » scale immigration, mass immigration, more immigration
now integrated » how integrated, new integrated, non integrated
supply race » supply rates, supply reach, supply case
supply now » supply crowd, supply donor

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 race immigration policies. ) OR ( supply now integrated policies. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply race immigration policies. ) or ( supply now integrated policies. ))*.