Perhaps you should try some spelling variations:
communications networks » communication networks, telecommunications networks, telecommunications network
au developpement » du developpement, de developpement, le developpement
developpement la » developpement de, developpement et, developpement du
3 information » 1 information
technology 3 » technology _, technology 1, technology 4
networks au » networks a, networks a4, networks 1
la afrique » l afrique, la fabrique, en 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 3 information 3.2 iot data communications networks au developpement la afrique.*.