Perhaps you should try some spelling variations:
6.1 communication » 4.1 communication, 1.1 communication, 3.1 communication
inflation target » inflation targeting, inflation rate, inflation rates
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
technology gaps » technology gap
gaps inflation » has inflation, grade inflation, rapid inflation
target states » target sites, target spaces, target date
states 6.1 » states 4.1, states 2.1, states 1.1
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology gaps inflation target states 6.1 communication costs au developpement en afrique.*.