Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
technologies can » technologies a, technologies co, technologies _
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
can information » von information, von informationen
model data » models data
de afrique » de l'afrique, en afrique, l afrique
data 6.2 » data 2.2, data 6.3, data 1.2
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologies can information model data 6.2 communication costs et developpement de afrique.*.