Perhaps you should try some spelling variations:
"support grant integration efforts." » "support grant international efforts.", "support grant conservation efforts.", "support migrant integration efforts.", "support trade integration efforts.", "support grid integration efforts."
"export taxes integration schemes." » "export taxes irrigation schemes.", "export taxes integration some.", "export taxes integration theories.", "export trade integration schemes.", "export fare integration schemes.", "export care integration schemes.", "exports taxes integration schemes."

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

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