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 _
can information » von information, von informationen
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
model update » models update, modes update, model updating
update 6.2 » update 3.2, update 6.3, update 6.3.2
l afrique » en afrique
costs 4 » costs _, costs a, costs 4.2

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 update 6.2 communication costs 4 developpement l afrique.*.