Perhaps you should try some spelling variations:
"supply case international efforts." » "supply case international airports.", "supply case international energy.", "supply case international airport.", "supply cases international efforts.", "supply care international efforts.", "supply cause internationale efforts.", "supply cost international efforts.", "supply chain international efforts.", "supply curve international efforts."
"supply side irrigation schemes." » "supply side irrigation scheme.", "supply side irrigation systems.", "supply saline irrigation schemes.", "supply scale irrigation schemes.", "supply under irrigation schemes."

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

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