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 flood irrigation system." » "supply flood irrigation systems.", "supply flood irrigation water.", "supply flood irrigation scheme.", "supply flood mitigation system.", "supply led irrigation system.", "supply farm irrigation system.", "supply food irrigation system.", "supply from irrigation system.", "supply crowd irrigation system."

Try widening your search to All Fields.

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

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