Perhaps you should try some spelling variations:
"supply basin irrigation schemes." » "supply basin irrigation systems.", "supply basin irrigation systemss.", "supply drip irrigation schemes.", "supply canal irrigation schemes.", "supply farm irrigation schemes.", "supply asia irrigation schemes.", "supply based irrigation schemes.", "supply design irrigation schemes."
"supply charges irrigation scheme." » "supply change irrigation scheme.", "supply large irrigation scheme.", "supply surge irrigation scheme.", "supply charges irrigation systems.", "supply channels irrigation scheme.", "supply chains irrigation scheme.", "supply curves 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 charges irrigation scheme.") or ("supply basin irrigation schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply charges irrigation scheme.") OR ("supply basin irrigation schemes.")).
• Removing quotes may allow a broader search: (( supply charges irrigation scheme. ) or ( supply basin irrigation schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("supply charges irrigation scheme.") or ("supply basin irrigation schemes."))*.