Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
technology rate » technology state, technology role, technology related
development lie » development life, development li, development lid
rate inflation » grade inflation, wage inflation, age inflation
inflation tax » inflation rate, inflation _, inflation target
lie afrique » l afrique
tax rate » tax rates
rate 6.2 » rates 6.2, rate 4.2, rate 5.2
costs 2 » costs 20, 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 rate inflation tax rate 6.2 communication costs 2 development lie afrique.*.