Perhaps you should try some spelling variations:
"support price immigration policies." » "support price immigration policy.", "support price migration policy.", "support race immigration policies.", "support from immigration policies.", "support gross immigration policies.", "support process immigration policies.", "support policy immigration policies.", "export price immigration policies."
"support grid integration series." » "support grid integration theories.", "support grid integrating services.", "support grid integration schemes.", "support trade integration series.", "support _ integration series.", "support data integration series.", "support agri integration series.", "support grant integration series.", "support group 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 grid integration series.") OR ("support price immigration policies."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support grid integration series.\") OR (\"support price immigration policies.\"))".
• Removing quotes may allow a broader search: (( support grid integration series. ) OR ( support price immigration policies. )).
• Adding a wildcard symbol may retrieve word variants: (("support grid integration series.") OR ("support price immigration policies."))*.