Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
5.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
change inflation » change information, change innovation, change simulation
development li » development lid, development lie, development lin
inflation a » inflation _, inflation tax, inflation rate
li afrique » l afrique, en afrique
case 5.3 » case 2.3, case 5.2, case 3.3
costs a » costs _, costs 4
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 inflation a case 5.3 communications costs a development li afrique.*.