Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
open development » clean development, driven development, human development
inflation wage » inflation rate, inflation target, inflation rates
technology 4 » technology _, technology 1, technology 3
4 inflation » _ inflation, 2 inflation, 6 inflation
costs open » cost open, costs over
wage rate » wage rates
rate 2.3 » rates 2.3, rate 2.4, rate 4.3

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

• Adding a wildcard symbol may retrieve word variants: technology 4 inflation wage rate 2.3 communication costs open development latin afrique.*.