Perhaps you should try some spelling variations:
"supply anti immigration policies." » "supply anti immigration policy.", "supply anti migration policy.", "supply net immigration policies.", "supply _ immigration policies.", "supply mass immigration policies.", "supply ann immigration policies."
"support actor interaction series." » "support actor interactions series.", "support actor interaction studies.", "support actor interaction terms.", "support matter interaction series.", "support matter interactions series.", "support fiction interaction series.", "support vector interaction series.", "support action interaction series.", "support act interaction series."

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 anti immigration policies.") OR ("support actor interaction series."))~.
• Removing quotes may allow a broader search: (( supply anti immigration policies. ) or ( support actor interaction series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply anti immigration policies.") or ("support actor interaction series."))*.