Perhaps you should try some spelling variations:
information rates » information states, information ratio, information rules
5.4 communication » de communication, data communication
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
4 information » 2 information, 1 information
technology 4 » technology _, technology 1, technology 3
rates case » rates cape, states case, rates east
l afrique » en afrique
case 5.4 » case 5.2, case 5.3, case 1.4
costs a » costs _, costs 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology 4 information rates case 5.4 communication costs a developpement l afrique.*.