Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
urban development » human development
technologies new » technologies _, technologies 4, technologies 2
development case » development china
new information » 2 information
network urban » network area
de risk » e risk, de risi, edge risk

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

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