Perhaps you should try some spelling variations:
"supply a integration schemes." » "supply a integration schengen.", "supply a irrigation schemes.", "supply a integration regimes.", "supply 3 integration schemes.", "supply 2 integration schemes.", "supply 4 integration schemes.", "supply _ integration schemes."
"supply scale migration policies." » "supply scale immigration policies.", "supply scale migration policy.", "supply scale education policies.", "supply male migration policies.", "supply female migration policies.", "supply trade migration policies.", "supply case migration policies.", "supply scheme migration policies.", "supply social migration policies."

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: (("supply a integration schemes.") or ("supply scale migration policies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply a integration schemes.") OR ("supply scale migration policies.")).
• Removing quotes may allow a broader search: (( supply a integration schemes. ) or ( supply scale migration policies. )).
• Adding a wildcard symbol may retrieve word variants: (("supply a integration schemes.") or ("supply scale migration policies."))*.