Perhaps you should try some spelling variations:
"supply gaps integration policies." » "supply gaps immigration policies.", "supply gaps international policies.", "supply gaps migration policies.", "supply gaps integrating policies.", "supply gis integration policies.", "supply means integration policies.", "supply gap integration policies.", "supply gas integration policies."
"support migrant integration series." » "support market integration series.", "support migrant integration services.", "support migrant interaction series.", "support migrant integration server.", "support migrants integration series.", "support grant integration series.", "supporting migrants 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 migrant integration series.") OR ("supply gaps integration policies."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support migrant integration series.\") OR (\"supply gaps integration policies.\"))".
• Removing quotes may allow a broader search: (( support migrant integration series. ) OR ( supply gaps integration policies. )).
• Adding a wildcard symbol may retrieve word variants: (("support migrant integration series.") OR ("supply gaps integration policies."))*.