Perhaps you should try some spelling variations:
progress information » process information, program information, processes information
economic progress » economic prospects
information wage » information age, information war, information wants
developpement et » developpement des, developpement de, development east
1 communication » 10 communication, 3 communication, 4 communication
4 developpement » de developpement, le developpement, et developpement
et afrique » en afrique, l afrique
wage rate » wage rates
costs 4 » costs _, costs a, costs 4.2
rate 1 » rate 10, rate _, rate 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: economic progress information wage rate 1 communication costs 4 developpement et afrique.*.