Perhaps you should try some spelling variations:
"supply chain conservation efforts." » "supply charge conservation efforts.", "supply aid conservation efforts.", "supply ocean conservation efforts."
"supply great integration theory." » "supply great integration through.", "supply great information theory.", "supply great innovation theory.", "supply et integration theory.", "supply test integration theory.", "supply text integration theory.", "supply growth integration theory.", "supply gap integration theory.", "supply gas integration theory."

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: (("supply chain conservation efforts.") OR ("supply great integration theory."))~.
• Removing quotes may allow a broader search: (( supply chain conservation efforts. ) or ( supply great integration theory. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply chain conservation efforts.") or ("supply great integration theory."))*.