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 de integration some." » "support de integration south.", "support de integration soziale.", "support de integration social.", "support die integration some.", "support re integration some.", "support une integration some.", "support _ integration some.", "support a integration some.", "support 4 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 de integration some."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support mass immigration policies.") OR ("support de integration some.")).
• Removing quotes may allow a broader search: (( support mass immigration policies. ) or ( support de integration some. )).
• Adding a wildcard symbol may retrieve word variants: (("support mass immigration policies.") or ("support de integration some."))*.