Perhaps you should try some spelling variations:
"support mass immigration policies." » "support mass immigration policy.", "support mass migration policy.", "support mass migration policies.", "support _ immigration policies.", "support mcfs immigration policies.", "support mdbs immigration policies.", "support basic immigration policies."
"support von integration some." » "support von integration south.", "support von integration soziale.", "support von integration social.", "support von interaktion some.", "support can integration some.", "support 1.2 integration some.", "rapport von integration some.", "support vs integration some."

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