Perhaps you should try some spelling variations:
"supply basin irrigation schemes." » "supply basin irrigation scheme.", "supply basin irrigation systems.", "supply drip irrigation schemes.", "supply canal irrigation schemes.", "supply farm irrigation schemes.", "supply asia irrigation schemes.", "supply based irrigation schemes.", "supply design irrigation schemes."
"supply from integration south." » "supply from integration study.", "supply from integration some.", "supply from integration social.", "supply roma integration south.", "supply from immigration south.", "supply from international 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 basin irrigation schemes.") or ("supply from integration south."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply basin irrigation schemes.") OR ("supply from integration south.")).
• Removing quotes may allow a broader search: (( supply basin irrigation schemes. ) or ( supply from integration south. )).
• Adding a wildcard symbol may retrieve word variants: (("supply basin irrigation schemes.") or ("supply from integration south."))*.