Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
developpement et » developpement des, developpement de, development east
access reaction » access regulation, access correction, accessor creation
a developpement » au developpement, de developpement, le developpement
reaction based » reduction based, action based, creation based
based rate » based rebate, based water, based route
et afrique » en afrique, l afrique
rate 5.2 » rates 5.2, rate 5.4, rate 4.2
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 access reaction based rate 5.2 communication costs a developpement et afrique.*.