Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
technology trade » technology trends, technology transfer, technology transfers
developpement de » developpement des, developpement durable
integration 3.2 » integration 4
a communication » la communication, data communication, data communications
a developpement » au developpement, de developpement, le developpement
de afrique » de l'afrique, en afrique, l afrique
3.2 facts » 2.2 facts, 4.2 facts, 5.2 facts
network a » network _, network 3, network 1
facts a » facts _, facts 1

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

• Adding a wildcard symbol may retrieve word variants: technology trade integration 3.2 facts a communication network a developpement de afrique.*.