Perhaps you should try some spelling variations:
2.4 communication » 2.14 communication, 5.4 communication, 2.3 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
target rate » target date, target range, target price
rate 2.4 » rate 5.4, rate 4, rate 4.3
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 rate 2.4 communication costs a developpement en afrique.*.