Perhaps you should try some spelling variations:
"supply build international airports." » "supply build international airport.", "supply build international transport.", "supply build international airshow.", "supply builds international airports.", "supply building international airports.", "supply third international airports.", "support build international airports.", "supply based international airports.", "supply cold international airports."
"supply scale irrigation scheme." » "supply scale irrigation systems.", "supply case irrigation scheme.", "supply scheme irrigation scheme.", "supply social irrigation scheme."

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 scale irrigation scheme.") or ("supply build international airports."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply scale irrigation scheme.") OR ("supply build international airports.")).
• Removing quotes may allow a broader search: (( supply scale irrigation scheme. ) or ( supply build international airports. )).
• Adding a wildcard symbol may retrieve word variants: (("supply scale irrigation scheme.") or ("supply build international airports."))*.