Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
information war » information what, information wants, information when
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
war roles » war alles
roles 2.7 » role 2.7, roles 2.3, roles 14.7
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: technology _ information war roles 2.7 communication costs 4 developpement l afrique.*.