Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
inflation target » inflation targeting, inflation rate, inflation rates
developpement de » developpement des, developpement durable
technology than » technology tax, technology trap, technology change
a developpement » au developpement, de developpement, le developpement
than inflation » has inflation, than information, huang inflation
target apo » target atom
de afrique » de l'afrique, en afrique, l 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 than inflation target apo 5.2 communication costs a developpement de afrique.*.