Perhaps you should try some spelling variations:
communications networks » communication networks, telecommunications networks, telecommunications network
deep developpement » de developpement, deux developpements, le developpement
developpement du » developpement de, developpement des, developpement et
networks deep » networks data
technology 1 » technology _
du afrique » en afrique, l afrique, de l'afrique
3.2 iot » 3.1 iot, 3.2 irt, 5.2 iot

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information 3.2 iot data communications networks deep developpement du afrique.*.