Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
inflation target » inflation targeting, inflation rate, inflation rates
20 development » 2 development, 2015 development, 2007 development
technology 3 » technology _, technology 1, technology 4
3 inflation » _ inflation, 2 inflation, 6 inflation
1 afrique » l afrique, en afrique, 1 enrique
plan 3.1 » plans 3.1, plant 3.1, plan 3.3
costs 20 » costs 60, costs 2.3, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology 3 inflation target plan 3.1 communication costs 20 development 1 afrique.*.