Perhaps you should try some spelling variations:
"supply canal irrigation schemes." » "supply canal irrigation scheme.", "supply canal irrigation systems.", "supply scale irrigation schemes.", "supply canada irrigation schemes.", "supply annual irrigation schemes.", "supply china irrigation schemes."
"supply crowd integration south." » "supply grid integration south.", "supply rfid integration south.", "supply beyond integration south.", "supply crowd integration study.", "supply crowd integration some.", "supply crowd integration social.", "supply growth integration south.", "supply cost integration south.", "supply from integration south."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply canal irrigation schemes.") or ("supply crowd integration south."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply canal irrigation schemes.") OR ("supply crowd integration south.")).
• Removing quotes may allow a broader search: (( supply canal irrigation schemes. ) or ( supply crowd integration south. )).
• Adding a wildcard symbol may retrieve word variants: (("supply canal irrigation schemes.") or ("supply crowd integration south."))*.