Perhaps you should try some spelling variations:
"support grant integration theories." » "support grant integration theory.", "support grant integration through.", "support grant integration reforms.", "support migrant integration theories.", "support trade integration theories.", "support grid integration theories."
"supply crowd integration efforts." » "supply crowd international efforts.", "supply crowd conservation efforts.", "supply grid integration efforts.", "supply trade integration efforts.", "supply chain integration efforts.", "supply growth integration efforts.", "supply cost integration efforts.", "supply how integration efforts."

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 theories.") OR ("supply crowd integration efforts."))~.
• Removing quotes may allow a broader search: (( support grant integration theories. ) or ( supply crowd integration efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support grant integration theories.") or ("supply crowd integration efforts."))*.