Perhaps you should try some spelling variations:
4.3 communication » 2.3 communication, 4.1 communication, 4 communication
inflation target » inflation targeting, inflation rate, inflation rates
risk inflation » risk information, rising inflation, risk inclination
envelopment l » development li, development 1
target rates » target rate, target ranges, target states
costs data » cost data
rates 4.3 » rates 4.2, rates 4.5, rate 4.3
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology risk inflation target rates 4.3 communication costs data envelopment l afrique.*.