Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
town development » open development, human development, urban development
inflation wages » inflation rates, inflation taxes, inflation targets
technology 4.2 » technology 2.2, technology 3.2, technology 4.1
4.2 inflation » 3.2 inflation, 12 inflation, 2.3 inflation
development l » development li, development 1, development law
costly town » costly than
wages case » ages case, wages close, cases case
l afrique » en afrique
case 5.2 » case 4.2, case 3.2, case 2

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

• Adding a wildcard symbol may retrieve word variants: technology 4.2 inflation wages case 5.2 communication costly town development l afrique.*.