Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technological wages » technological waves, technological changes, technological basis
3 communications » 3 communication, 2 communications, 4 communications
wages inflation » wage inflation, age inflation, cases inflation
developing asia » development asia, developing a
4 developing » 3 developing
asia afrique » africa afrique, asia africa
costs 4 » costs _, costs a, costs 4.2
cash 3 » cash _, cash 4, cash a

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

• Adding a wildcard symbol may retrieve word variants: technological wages inflation _ cash 3 communications costs 4 developing asia afrique.*.