Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
ac developpement » au developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
4ir information » fair information, der information, fur information
information 2.2 » information 1.2, information 2.7, information 2.2.2
technology 4ir » technology 4, technology 4.1, technology 4.2
2.2 factors » 3.2 factors, 3.3 factors
network ac » network a, network acls, network anp
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology 4ir information 2.2 factors _ communication network ac developpement de afrique.*.