Perhaps you should try some spelling variations:
"export policy integration theory." » "export policy integration through.", "export policy information theory.", "export policy integration report.", "export policy intervention theory.", "export social integration theory.", "export policy interventions theory.", "import policy integration theory.", "support policy integration theory.", "export price integration theory."
"support grant innovation through." » "support grant innovation house.", "support green innovation through.", "support trade innovation through.", "support ukraine innovation through."

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: (("export policy integration theory.") OR ("support grant innovation through."))~.
• Removing quotes may allow a broader search: (( export policy integration theory. ) or ( support grant innovation through. ))~.
• Adding a wildcard symbol may retrieve word variants: (("export policy integration theory.") or ("support grant innovation through."))*.