Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
technology voice » technology choice, technology choices, technology volume
developpement il » developpement de, developpement et, developpement du
voice inflation » price inflation, core inflation, die inflation
inflation rates » inflation rate
a developpement » au developpement, de developpement, le developpement
rates case » rates cape, states case, rates east
il afrique » l afrique, en afrique
case 2.2 » cases 2.2, case 4.2, case 2.3
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 voice inflation rates case 2.2 communication costs a developpement il afrique.*.