Perhaps you should try some spelling variations:
urban development » human development
sa communication » la communication, a communication, asia communication
development case » development china
technologies 2 » technologies _, technologies 4
de sa » de la
networks » network

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 information _ de sa communication networks urban development case afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 information _ de sa communication networks urban development case afrique.*.