Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
inflation target » inflation targeting, inflation rate, inflation rates
technology fund » technology from
fund inflation » und inflation, food inflation, fund information
4 developing » 3 developing
target file » target field, target while, target fish
file 6.2 » file 62, falle 6.2, files 6.3
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology fund inflation target file 6.2 communication costs 4 developing _ afrique.*.