Perhaps you should try some spelling variations:
"support trade integration efforts." » "support trade international efforts.", "support trade conservation efforts.", "support trainer integration efforts.", "export trade integration efforts.", "import trade integration efforts."
"support agri irrigation systems." » "support africa irrigation systems.", "support grain irrigation systems.", "support syria irrigation systems.", "support grid irrigation systems.", "support aging irrigation systems.", "support a irrigation systems.", "support agri irrigation system."

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 agri irrigation systems.") OR ("support trade integration efforts."))~.
• Removing quotes may allow a broader search: (( support agri irrigation systems. ) or ( support trade integration efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support agri irrigation systems.") or ("support trade integration efforts."))*.