Perhaps you should try some spelling variations:
technology usage » technology use, technology age, technology users
de communication » mobile communication, online communication
developpement en » developpement et, developpement des, developpement de
usage inflation » wage inflation, age inflation, usage information
a developpement » au developpement, de developpement, le developpement
inflation a » inflation _, inflation tax, inflation rate
prices de » prices does, prices _, prices a
a prices » a price, 2 prices, gas prices
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology usage inflation a prices de communication costs a developpement en afrique.*.