Perhaps you should try some spelling variations:
"supply basin irrigation systemss." » "supply basin irrigation systems.", "supply basin irrigation system.", "supply basin irrigation schemes.", "supply drip irrigation systemss.", "supply canal irrigation systemss.", "supply farm irrigation systemss.", "supply asia irrigation systemss.", "supply based irrigation systemss.", "supply design irrigation systemss."
"supply from irrigation scheme." » "supply from irrigation systems.", "supply farm irrigation scheme.", "supply crop irrigation scheme.", "supply furrow irrigation scheme."

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

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