Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
data communication » data communications
3.1 developpement » 3.1 development, de developpement, le developpement
developpement de » developpement des, developpement durable
series 3.1 » series 2.1, series 7.1, series 3.2
de afrique » de l'afrique, en afrique, l afrique
rich data » which data, fish data
und rich » und richir, land rich, und rache

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

• Adding a wildcard symbol may retrieve word variants: technologies _ informations und rich data communication series 3.1 developpement de afrique.*.