Perhaps you should try some spelling variations:
integration social » international social
urban integration » european integration, global integration, trade integration
supply urban » supply rural
supply gain » supply chain, supply gap, supply chains
internet » interest, internal
service. » services.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply gain internet service. ) or ( supply urban integration social. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply gain internet service. ) OR ( supply urban integration social. )).
• Adding a wildcard symbol may retrieve word variants: (( supply gain internet service. ) or ( supply urban integration social. ))*.