Perhaps you should try some spelling variations:
"support agri integration theories." » "support agri integration theory.", "support agri integration through.", "support agri integration reforms.", "support grid integration theories.", "support fare integration theories.", "support care integration theories.", "support a integration theories."
"support grant integration efforts." » "support grant international efforts.", "support grant conservation efforts.", "support migrant integration efforts.", "support trade integration efforts.", "support grid integration efforts."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("support agri integration theories.") or ("support grant integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support agri integration theories.") OR ("support grant integration efforts."))*.
• Removing quotes may allow a broader search: (( support agri integration theories. ) or ( support grant integration efforts. ))*.