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
from inflation » food inflation, from isolation, from information
target field » large field, target file, gasfet field
4 developing » 3 developing
field 6.2 » fields 6.2, field 3.2, field 1.2
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 from inflation target field 6.2 communication costs 4 developing _ afrique.*.