Perhaps you should try some spelling variations:
"supply scale irrigation schemes." » "supply scale irrigation scheme.", "supply scale irrigation systems.", "supply case irrigation schemes.", "supply scheme irrigation schemes.", "supply social irrigation schemes."
"support grid integration series." » "support grid integration theories.", "support grid integrating services.", "support grid integration schemes.", "support trade integration series.", "support _ integration series.", "support data integration series.", "support agri integration series.", "support grant integration series.", "support group integration series."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply scale irrigation schemes.") or ("support grid integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply scale irrigation schemes.") OR ("support grid integration series."))*.
• Removing quotes may allow a broader search: (( supply scale irrigation schemes. ) or ( support grid integration series. ))*.