Perhaps you should try some spelling variations:
"supply trade integration efforts." » "supply trade international efforts.", "supply trade conservation efforts.", "supply side integration efforts.", "supply case integration efforts."
"export trade international power." » "export care international power.", "export private international power.", "export states international power.", "export trade international poverty.", "export trade international border.", "export trade international water.", "export share international power.", "export taxes international power.", "export price international power."

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

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