Perhaps you should try some spelling variations:
"supply side international efforts." » "supply side international airports.", "supply side international energy.", "supply side international airport.", "supply some international efforts.", "supply time international efforts.", "supply eine international efforts."
"supply urban integration theories." » "supply urban integration theorems.", "supply urban integrationstheorie 2.", "supply urban integration theory.", "supply european integration theories.", "supply urban migration theories.", "supply chain integration theories."

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

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