Perhaps you should try some spelling variations:
"supply crowd irrigation schemes." » "supply crowd irrigation systems.", "supply crowd irrigation systemss.", "supply crop irrigation schemes.", "supply from irrigation schemes.", "supply furrow irrigation schemes.", "supply growth irrigation schemes.", "supply cost irrigation schemes."
"supply flood irrigation scheme." » "supply flood irrigation systems.", "supply flood mitigation scheme.", "supply led irrigation scheme.", "supply farm irrigation scheme.", "supply food irrigation scheme.", "supply from irrigation scheme.", "supply block 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 flood irrigation scheme.") or ("supply crowd irrigation schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply flood irrigation scheme.") OR ("supply crowd irrigation schemes.")).
• Removing quotes may allow a broader search: (( supply flood irrigation scheme. ) or ( supply crowd irrigation schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("supply flood irrigation scheme.") or ("supply crowd irrigation schemes."))*.