Perhaps you should try some spelling variations:
"supply chain importing countries." » "supply chain exporting countries.", "supply chain importing country.", "supply sharing importing countries.", "supply chains supporting countries.", "supply chain imperative countries."
"supply trade international cooperation." » "supply care international cooperation.", "supply time international cooperation.", "supply private international cooperation.", "supply case international cooperation."

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

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