Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
technology firms » technology from, technology platforms, technology fund
inflation target » inflation targeting, inflation rate, inflation rates
firms inflation » sims inflation, firms innovation, facts inflation
4 developing » 3 developing
target file » target field, target while, target fish
file 2.3 » file 2.7, file 23, file 2.4.3
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 firms inflation target file 2.3 communication costs 4 developing _ afrique.*.