Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
inflation targets » inflation target, inflation targeting, inflation rates
series inflation » series isolation, series information, series infromation
1 communications » 10 communications, 14 communications, 1 communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
targets whole » targets whose, target while, targets where
whole 1 » whole _, whole 3, whole 4
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 series inflation targets whole 1 communications costs a developpement en afrique.*.