Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
development towns » development tools, development towards, development trends
information case » information based, information can, information costs
technologies 2 » technologies _, technologies 4
4 development » 2 development, 4 developing
towns africa » works africa
4.1 actors » 4.4 actors, 2.2 actors, 6.4 actors
case 4.1 » case 4.2, case 1
media 4 » media _, media 1, media 3

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information case 4.1 actors communication media 4 development towns africa.*.