Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
change information » chandos information, trade information
technology change » technological change, technological changes
4 communications » 14 communications, 4 communication, 2 communications
information id » information im, information i, information iii
1 afrique » l afrique, en afrique, 1 enrique
costs a » costs _, costs 4
case 4 » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technology change information id case 4 communications costs a development 1 afrique.*.