Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
radio communications » radio communication, data communications
technology state » technology strategy, technology system, technology study
developpement et » developpement des, developpement de, development east
state formation » state estimation
a developpement » au developpement, de developpement, le developpement
formation 1.3 » formation 1.1, formation 5.3, formation 1.2
does radio » das radio
et afrique » en afrique, l afrique
1.3 does » 12.3 does, 18.3 does, 13 does
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 state formation 1.3 does radio communications costs a developpement et afrique.*.