Perhaps you should try some spelling variations:
"supply large irrigation schemes." » "supply large irrigation scheme.", "supply large irrigation systems.", "supply farm irrigation schemes.", "supply drip irrigation schemes.", "supply scale irrigation schemes.", "supply charges irrigation schemes.", "supply targets irrigation schemes.", "supply curve irrigation schemes."
"supply count internet services." » "supply count internet service.", "supply post internet services.", "supply account internal services.", "supply control internet services.", "supply cost internet services.", "supply costs internet services.", "supply china internet 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 large irrigation schemes.") or ("supply count internet services."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply large irrigation schemes.") OR ("supply count internet services.")).
• Removing quotes may allow a broader search: (( supply large irrigation schemes. ) or ( supply count internet services. )).
• Adding a wildcard symbol may retrieve word variants: (("supply large irrigation schemes.") or ("supply count internet services."))*.