Perhaps you should try some spelling variations:
"supply large irrigation schemess." » "supply large irrigation schemes.", "supply large irrigation scheme.", "supply farm irrigation schemess.", "supply drip irrigation schemess.", "supply scale irrigation schemess.", "supply charges irrigation schemess.", "supply targets irrigation schemess.", "supply curve irrigation schemess."
"supply change mitigation scheme." » "supply change irrigation scheme.", "supply change irrigation schemes.", "supply change mitigation systems.", "supply charges mitigation scheme.", "supply channels mitigation scheme.", "supply chain's mitigation scheme."

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

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