Perhaps you should try some spelling variations:
10.4 communication » 1.4 communication, 10.2.4 communication, 10.4.3 communication
information data » information d820, information database, information databases
developpement la » developpement de, developpement et, developpement du
d developpement » de developpement, du developpement, le developpement
rates 10.4 » rates 10.6, drapes 10.4, rates 12.3
la afrique » l afrique, la fabrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information data rates 10.4 communication a d developpement la afrique.*.