Perhaps you should try some spelling variations:
5.2.1 communications » 4.2.1 communication, 7.2.1 communication, 13.2.2 communications
communications costs » communication costs, communications _
inflation target » inflation targeting, inflation rate, 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
target chile » target while, market chile, target file
li afrique » l afrique, en afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology flow inflation target chile 5.2.1 communications costs a development li afrique.*.