Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
technology tools » technology thesis
inflation target » inflation targeting, inflation rate, inflation rates
tools inflation » does inflation, taxes inflation, tools evaluation
development li » development lid, development lie, development lin
target rice » target price, target prices, target rate
cost social » costs social, costa social, post social
li afrique » l afrique, en afrique
rice 1.1 » rice 2.1, rice 3.1, rice 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology tools inflation target rice 1.1 communication cost social development li afrique.*.