Perhaps you should try some spelling variations:
"support tool international airport." » "support tool international transport.", "support tool international airshow.", "support boom international airport.", "support tokyo international airport.", "support from international airport.", "support tools international airport."
"supply through irrigation scheme." » "supply through integration scheme.", "supply through innovation scheme.", "supply high irrigation scheme.", "supply through irrigation systems.", "support through irrigation scheme."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply through irrigation scheme.\") OR (\"support tool international airport.\"))~".
• Removing quotes may allow a broader search: (( supply through irrigation scheme. ) OR ( support tool international airport. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply through irrigation scheme.") OR ("support tool international airport."))*.