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
information gaps » information gap
new information » 2 information
network urban » network area
a afrique » l afrique, en afrique
gaps new » gaps how

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 gaps new _ communication network urban development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information gaps new _ communication network urban development a afrique.*.