Perhaps you should try some spelling variations:
"support grant integration theory." » "support grant integration through.", "support grant information theory.", "support migrant integration theory.", "support trade integration theory.", "support urban integration theory."
"support grid integration report." » "support grid integration efforts.", "support grid innovation report.", "support trade integration report.", "support _ integration report.", "support data integration report.", "support agri integration report.", "support group integration report.", "support price integration report."

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