Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
5.4 communications » 5.4 communication, 1.4 communication, 14 communications
model development » local development, social development, global development
technology price » technology rich, technology voice, technology service
inflation causes » inflation crises, inflation rates, inflation taxes
development l » development li, development 1, development law
causes case » crises case, causes costs
costs model » cost model, cost models, costs money
l afrique » en afrique
case 5.4 » case 5.2, case 5.3, case 1.4

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

• Adding a wildcard symbol may retrieve word variants: technology price inflation causes case 5.4 communications costs model development l afrique.*.