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 chain irrigation schemes.", "supply case irrigation schemes."
"support grant integration series." » "support grant integration theories.", "support grant integrating services.", "support grant integration schemes.", "support migrant integration series.", "support trade integration series.", "support grid integration series."

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 basin irrigation schemes.") OR ("support grant integration series."))~.
• Removing quotes may allow a broader search: (( supply basin irrigation schemes. ) or ( support grant integration series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply basin irrigation schemes.") or ("support grant integration series."))*.