Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
change information » chandos information, trade information
4 communications » 14 communications, 4 communication, 2 communications
information use » information und, information 2
development l » development li, development 1, development law
l afrique » en afrique
costs 2 » costs 20, costs _, costs 4
case 4 » case 1, case 2, case 3
technological » technologies

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

• Adding a wildcard symbol may retrieve word variants: technological change information use case 4 communications costs 2 development l afrique.*.