Perhaps you should try some spelling variations:
"supply chain information theory." » "supply can information theory.", "supply change information theory.", "supply domain information theory."
"support school operation efforts." » "support school conservation efforts.", "support school integration efforts.", "support school exploration efforts.", "support school operations efforts.", "support school population efforts.", "support school education efforts.", "supportive school operation efforts.", "supporting school operation efforts.", "support tool operation efforts."

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

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