Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
data communication » data communications
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
information 1.2 » information 1.5.2, information 2
a information » 2 information, 1 information
technology a » technology 1, technology 3, technology 4
network du » network do, network dmz, network _
1.2 use » 4.2 use, 5.2 use, 2.2 use

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

• Adding a wildcard symbol may retrieve word variants: technology a information 1.2 use data communication network du developpement de l'afrique.*.