Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.3 communications » 3.1 communications, 3.3 communication, 2.3 communication
technology price » technology rich, technology voice, technology service
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
case 3.3 » cases 3.3, case 2.3, case 3.1
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 price inflation _ case 3.3 communications costs 4 developpement l afrique.*.