Perhaps you should try some spelling variations:
"supply can integration efforts." » "supply can international efforts.", "supply can conservation efforts.", "supply chain integration efforts.", "supply von integration efforts.", "supply urban integration efforts.", "supply case integration efforts.", "supply chai integration 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply can integration efforts.") OR ("support grid irrigation schemes."))~.
• Removing quotes may allow a broader search: (( supply can integration efforts. ) or ( support grid irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply can integration efforts.") or ("support grid irrigation schemes."))*.