Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
change information » chandos information, trade information
technology change » technological change, technological changes
information trade » information trends, information table, information title
development li » development lid, development lie, development lin
trade cost » trade costs, trade costa, trade cross
li afrique » l afrique, en afrique
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology change information trade cost _ communications costs 2 development li afrique.*.