Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
inflation target » inflation targeting, inflation rate, inflation rates
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
range 2.3 » ranges 2.3, range 2.1, range 2.4
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 _ inflation target range 2.3 communication costs a developpement en afrique.*.