Perhaps you should try some spelling variations:
5.4 communication » de communication, data communication
information when » information what, information war, information wants
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
when groups » within groups, event groups
groups 5.4 » group 5.4, groups 5.3, groups 3.1
de afrique » de l'afrique, en afrique, l 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 when groups 5.4 communication costs 4 developpement de afrique.*.