Perhaps you should try some spelling variations:
"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."
"supply costs creating services." » "supply costs creating service.", "supply costs creative services.", "supply costs heating services.", "supply outs creating services.", "supply charts creating services.", "supply crises creating services."

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