Perhaps you should try some spelling variations:
"support group immigration policies." » "support group immigration policy.", "support group migration policy.", "support gross immigration policies.", "support from immigration policies.", "support gross emigration policies."
"support grant integration series." » "support grant integration theories.", "support grant integrating services.", "support grant integration schemes.", "support migrant integration series.", "support trade integration series.", "support grid integration series."

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

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