Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
inflation targets » inflation target, inflation targeting, inflation rates
technology flow » technology low, technology from, technology food
flow inflation » low inflation, food inflation, log inflation
development li » development lid, development lie, development lin
targets whole » targets whose, target while, targets where
4 development » 2 development, 4 developing
li afrique » l afrique, en afrique
whole 3.1 » whole 2.1, whole 2.10, whole 4.11
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 flow inflation targets whole 3.1 communications costs 4 development li afrique.*.