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 data integration series." » "support data integration theories.", "support data integrating services.", "support data integration schemes.", "support trade integration series.", "support _ integration series.", "support data integrity series.", "import data integration series.", "support a integration series.", "export data 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 scale irrigation schemes.") OR ("support data integration series."))~.
• Removing quotes may allow a broader search: (( supply scale irrigation schemes. ) or ( support data integration series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply scale irrigation schemes.") or ("support data integration series."))*.