Perhaps you should try some spelling variations:
"supply basin irrigation systems." » "supply drip irrigation systems.", "supply canal irrigation systems.", "supply farm irrigation systems.", "supply asia irrigation systems.", "supply based irrigation systems.", "supply design irrigation systems.", "supply basin irrigation system."
"Supply trip irrigation systems." » "Supply drip irrigation systems.", "Supply crop irrigation systems.", "Supply grain irrigation systems.", "Supply trip irrigation system."
supply trip » supply tariff, supply trade

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