Perhaps you should try some spelling variations:
"supply pricing information theory." » "supply producing information theory.", "supply providing information theory.", "supply price information theory.", "supply training information theory."
"supply factor integration theory." » "supply factor integration through.", "supply factor innovation theory.", "supply factor intermediation theory.", "supply facto integration theory.", "supply sector integration theory.", "supply actor interaction theory.", "supply factors integration theory."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply factor integration theory.") or ("supply pricing information theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply factor integration theory.") OR ("supply pricing information theory.")).
• Removing quotes may allow a broader search: (( supply factor integration theory. ) or ( supply pricing information theory. )).
• Adding a wildcard symbol may retrieve word variants: (("supply factor integration theory.") or ("supply pricing information theory."))*.