Perhaps you should try some spelling variations:
3.3 communication » 2.3 communication, 3.2 communication, 3.5 communication
information data » information d820, information database, information databases
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
technologies 1 » technologies _, technologies 4, technologies 2
data latent » data daten, data extent, data element
latent 3.3 » latency 3.3, extent 3.3, latenz 3.2
a du » a d, a de, a u

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information data latent 3.3 communication a du developpement en afrique.*.