Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
from information » from informal, 1 information
information when » information what, information war, information wants
developpement la » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
la afrique » l afrique, la fabrique, en afrique
when wall » when all, when small
wall 2.1 » wall 2.3, boll 2.1, wall 1.6
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 from information when wall 2.1 communication costs 4 developpement la afrique.*.