Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
data communication » data communications
information case » information based, information can, information costs
technologies 2 » technologies _, technologies 4
3 development » 2 development
china afrique » china africa
network 3 » network _
1 data » 2.1 data, 3.1 data, 4.1 data

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 1 data communication network 3 development china afrique.*.