Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
en developpement » et developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
information 2.7 » information 2.2, information 3.2, information 1.2
technology 3.1 » technology 1, technology 2.2, technology _
2.7 factors » 2.2 factors, 2.3 factors, 2.1 factors
network en » network e, network anp, network apn

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 information 2.7 factors _ communication network en developpement en afrique.*.