Perhaps you should try some spelling variations:
2.5 communication » 2.3 communication, 2.7 communication, 3.5 communication
developpement du » developpement de, developpement des, developpement et
information war » information what, information wants, information when
4 developpement » de developpement, le developpement, et developpement
du afrique » en afrique, l afrique, de l'afrique
war roles » war alles
roles 2.5 » roles 3.5, roles 5.5, roles 1.5
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 2.5 communication costs 4 developpement du afrique.*.