Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
technology how » technology 1, technology 2.2, technology 3
how inflation » low inflation, log inflation, has inflation
targeting how » marketing how, targeting poor, targeting _
how 4.2 » how 4.5, how 6.2, how 7.2
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 how inflation targeting how 4.2 communications costs a developpement en afrique.*.