Perhaps you should try some spelling variations:
"support crop irrigation schemes." » "support crop irrigation scheme.", "support crop irrigation systems.", "support drip irrigation schemes.", "support scale irrigation schemes.", "support canal irrigation schemes.", "support crops irrigation schemes.", "support group irrigation schemes.", "support cross 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.

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