Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
speed communications » based communication, cell communications, guinea communications
developpement en » developpement et, developpement des, developpement de
ict information » ct information, iot information, ist information
4 developpement » de developpement, le developpement, et developpement
technology ict » technology 1
information 1 » information 2, information 3, information 3.2
aes speed » a speed, any speed, access speed
costs 4 » costs _, costs a, costs 4.2
1 aes » 1 abs, _ aes, 1 ars

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

• Adding a wildcard symbol may retrieve word variants: technology ict information 1 aes speed communications costs 4 developpement en afrique.*.