Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
data communication » data communications
lent developpement » le developpement, et developpement, en developpement
developpement en » developpement et, developpement des, developpement de
technologies 2 » technologies _, technologies 4
information 3 » information 2
network lent » network glen, network along, network enter
3 book » 23 book, e book, 2 book

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 3 book data communication network lent developpement en afrique.*.