Perhaps you should try some spelling variations:
"support grid integration schemes." » "support grid irrigation schemes.", "support grid integration some.", "support grid integration theories.", "support trade integration schemes.", "support _ integration schemes.", "support data integration schemes.", "support agri integration schemes.", "support grant integration schemes.", "support group integration schemes."
"supply global integration efforts." » "supply global international efforts.", "supply global conservation efforts.", "supply regional integration efforts."

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: (("support grid integration schemes.") OR ("supply global integration efforts."))~.
• Removing quotes may allow a broader search: (( support grid integration schemes. ) or ( supply global integration efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support grid integration schemes.") or ("supply global integration efforts."))*.