Perhaps you should try some spelling variations:
based communications » based communication, speed communications, aided 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 3 » confirmation _, confirmation 9, confirmation et
aes based » ses based, areas based, cases based
l afrique » en afrique
costs 4 » costs _, costs a, costs 4.2
3 aes » 3 abs, _ aes

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

• Adding a wildcard symbol may retrieve word variants: technology study confirmation 3 aes based communications costs 4 developpement l afrique.*.