Perhaps you should try some spelling variations:
"support scale irrigation schemes." » "support scale irrigation scheme.", "support scale irrigation systems.", "support state irrigation schemes.", "support scheme irrigation schemes.", "support fiscal irrigation schemes."
"support fare integration series." » "support fare integration theories.", "support fare integrating services.", "support fare integration schemes.", "support market integration series.", "support trade integration series.", "support data integration series.", "support falls integration series.", "support state 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 scale irrigation schemes.") or ("support fare integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support scale irrigation schemes.") OR ("support fare integration series."))*.
• Removing quotes may allow a broader search: (( support scale irrigation schemes. ) or ( support fare integration series. ))*.