Perhaps you should try some spelling variations:
"supply case international policies." » "supply case international politics.", "supply case international prices.", "supply case international policy.", "supply cases international policies.", "supply care international policies.", "supply cause internationale policies.", "supply cost international policies.", "supply chain international policies.", "supply curve international policies."
"import price migration policy." » "import price education policy.", "import pre migration policy.", "import twice migration policy.", "import private migration policy.", "import prices migration policy.", "export price migration policy.", "export prices migration policy."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply case international policies.") or ("import price migration policy."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply case international policies.") OR ("import price migration policy.")).
• Removing quotes may allow a broader search: (( supply case international policies. ) or ( import price migration policy. )).
• Adding a wildcard symbol may retrieve word variants: (("supply case international policies.") or ("import price migration policy."))*.