Perhaps you should try some spelling variations:
speed communications » based communication, cell communications, guinea communications
communications costs » communication costs, communications _
study confirmation » side confirmation, de confirmation, equal confirmation
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
confirmation 2 » confirmation _, confirmation 3, confirmation 9
aes speed » a speed, any speed, access speed
l afrique » en afrique
costs 4 » costs _, costs a, costs 4.2
2 aes » 2 abs, _ aes, 2 als

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

• Adding a wildcard symbol may retrieve word variants: technology study confirmation 2 aes speed communications costs 4 developpement l afrique.*.