Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
communication modes » communication model, communication des, communication media
information means » information many, information media, information mart
urban development » human development
technologies 4 » technologies _
4 information » 2 information, 1 information
modes urban » modern urban, notes urban
3.2 actors » 3.2 factors, 2.2 actors, 6.2 actors
means 3.2 » means 4.2, means 3.2.3, means 6.3

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information means 3.2 actors communication modes urban development _ afrique.*.