Perhaps you should try some spelling variations:
"supply toward integrating countries." » "supply toward importing countries.", "supply toward immigration countries.", "supply toward integrating culture.", "supply toward integrated countries.", "supply towards integrated countries."
"supply curve integration efforts." » "supply curve international efforts.", "supply curve conservation efforts.", "supply care integration efforts.", "supply fare integration efforts.", "supply use 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 toward integrating countries.") or ("supply curve integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply toward integrating countries.") OR ("supply curve integration efforts.")).
• Removing quotes may allow a broader search: (( supply toward integrating countries. ) or ( supply curve integration efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("supply toward integrating countries.") or ("supply curve integration efforts."))*.