Perhaps you should try some spelling variations:
"supply gaps integrating countries." » "supply gaps importing countries.", "supply gaps immigration countries.", "supply gaps integrating culture.", "supply _ integrating countries.", "supply 2 integrating countries.", "supply gap integrating countries.", "supply pipes integrating countries."
"supply crowd integration efforts." » "supply crowd international efforts.", "supply crowd conservation efforts.", "supply grid integration efforts.", "supply trade integration efforts.", "supply chain integration efforts.", "supply growth integration efforts.", "supply cost integration efforts.", "supply how 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 crowd integration efforts.") or ("supply gaps integrating countries."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply crowd integration efforts.") OR ("supply gaps integrating countries.")).
• Removing quotes may allow a broader search: (( supply crowd integration efforts. ) or ( supply gaps integrating countries. )).
• Adding a wildcard symbol may retrieve word variants: (("supply crowd integration efforts.") or ("supply gaps integrating countries."))*.