Perhaps you should try some spelling variations:
2.4 communication » 2.14 communication, 5.4 communication, 2.3 communication
information what » information war, information when, information wants
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
3 information » 1 information
technology 3 » technology _, technology 1, technology 4
l afrique » en afrique
role 2.4 » role 2.7, role 3.4, role 4.4
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: technology 3 information what role 2.4 communication costs 4 developpement l afrique.*.