Perhaps you should try some spelling variations:
"supply trade integration schemes." » "supply trade integration schengen.", "supply trade irrigation schemes.", "supply trade integration regimes.", "supply case integration schemes."
"supply power integration efforts." » "supply power international efforts.", "supply power conservation efforts.", "supply proper integration efforts.", "supply cover integration efforts.", "supply border integration efforts.", "supply poverty integration efforts.", "supplier power integration efforts.", "supplies power integration efforts."

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