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."
"support grid irrigation schemes." » "support grid irrigation scheme.", "support grid irrigation systems.", "support grain irrigation schemes.", "support drip irrigation schemes.", "support gray irrigation schemes.", "support agri irrigation schemes.", "support grant irrigation schemes.", "support group 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: (("support grid irrigation schemes.") or ("supply case international efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support grid irrigation schemes.") OR ("supply case international efforts."))*.
• Removing quotes may allow a broader search: (( support grid irrigation schemes. ) or ( supply case international efforts. ))*.