Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
models development » model development, module development, model developments
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
inflation states » inflation rates, inflation taxes, inflation starts
development life » development level, development law, development latin
technology die » technologie die, technology does, technology 4ir
die inflation » does inflation, der inflation, price inflation
life afrique » life africa, l afrique
cost models » cost model, logit models
case 4.1 » case 4.2, case 1

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation states case 4.1 communication cost models development life afrique.*.