Perhaps you should try some spelling variations:
"supply china international efforts." » "supply china international airports.", "supply china international energy.", "supply china international airport.", "supply chains international efforts.", "supply chain international efforts."
"supply service inflation theory." » "supply service innovation theory.", "supply price inflation theory.", "supply services innovation theory.", "supply service information theory.", "supply service integration theory.", "supply services inflation 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 service inflation theory.") OR ("supply china international efforts."))~.
• Removing quotes may allow a broader search: (( supply service inflation theory. ) or ( supply china international efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply service inflation theory.") or ("supply china international efforts."))*.