Perhaps you should try some spelling variations:
5.5.2 communication » 3.3.2 communication, 3.4.2 communication, 4.2.2 communication
developpement de » developpement des, developpement durable
information war » information what, information wants, information when
4 developpement » de developpement, le developpement, et developpement
3 information » 1 information
technology 3 » technology _, technology 1, technology 4
roles 5.5.2 » roles 3.4.2, roles 5.2, roles 8.2.2
war roles » war alles
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 war roles 5.5.2 communication costs 4 developpement de l'afrique.*.