Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.1 communications » 4.1 communication, 3.1 communications, 4.1 communicating
developpement en » developpement et, developpement des, developpement de
inflation rates » inflation rate
4 developpement » de developpement, le developpement, et developpement
technology die » technologie die, technology does, technology 4ir
die inflation » does inflation, der inflation, price inflation
rates trade » states trade, rules trade, wages trade
trade 4.1 » trade 2.2, trade 3.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation rates trade 4.1 communications costs 4 developpement en afrique.*.