Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.2 communications » 3.2 communication, 3.1 communications, 4.2 communications
inflation target » inflation targeting, inflation rate, inflation rates
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
target price » target prices, market price, asset price
price 3.2 » prices 3.2, price 2.2, rice 3.2
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 gap inflation target price 3.2 communications costs a developpement de l'afrique.*.