Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
change information » chandos information, trade information
technology change » technological change, technological changes
14 communications » 10 communications, 14 communication, 4 communications
information id » information im, information i, information iii
development li » development lid, development lie, development lin
4 development » 2 development, 4 developing
li afrique » l afrique, en afrique
id cases » aid cases, id case, aids cases
cases 14 » cases 4, cases 1, cases 10
costs 4 » costs _, costs a, costs 4.2

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 cases 14 communications costs 4 development li afrique.*.