Perhaps you should try some spelling variations:
"supply cost international efforts." » "supply cost international airports.", "supply cost international energy.", "supply cost international airport.", "supply costs international efforts.", "supply costea international efforts.", "supply 1st international efforts."
"supply water immigration countries." » "supply water immigration policies.", "supply water migration countries.", "supply war immigration countries.", "supply water irrigation countries."

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

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