Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
10.4 communication » 1.4 communication, 10.2.4 communication, 10.4.3 communication
than development » chain development, town development, plan development
technology die » technologie die, technology does, technology 4ir
inflation base » inflation rate, inflation bias, inflation das
development iv » development ii, development 1, development i150
die inflation » does inflation, der inflation, price inflation
costly than » costly trade
iv afrique » en afrique, l afrique
base case » use case, base wage
case 10.4 » case 1.4, case 12.4, case 2.4

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation base case 10.4 communication costly than development iv afrique.*.