Perhaps you should try some spelling variations:
"supply canal irrigation schemes." » "supply canal irrigation scheme.", "supply canal irrigation systems.", "supply scale irrigation schemes.", "supply canada irrigation schemes.", "supply annual irrigation schemes.", "supply china irrigation schemes."
"support grant integration series." » "support grant integration services.", "support grant interaction series.", "support grant integration server.", "support migrant integration series.", "support migrants integration series.", "support statt 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 canal irrigation schemes.") OR ("support grant integration series."))~.
• Removing quotes may allow a broader search: (( supply canal irrigation schemes. ) or ( support grant integration series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply canal irrigation schemes.") or ("support grant integration series."))*.