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 first international efforts.", "supply joint international efforts."
"supply crop irrigation system." » "supply crop irrigation systems.", "supply crop irrigation water.", "supply crop irrigation scheme.", "supply drip irrigation system.", "supply scale irrigation system.", "supply canal irrigation system.", "supply crowd irrigation system.", "supply curve irrigation system."

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

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