Perhaps you should try some spelling variations:
information wages » information age, information wants, information war
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
et developpement » de developpement, le developpement, test development
developpement l » developpement il, developpement la, developpement de
3 information » 1 information
technology 3 » technology _, technology 1, technology 4
wages trade » wages race, wharves trade, states trade
trade 4.2 » trade 2.2, trade 3.2, trade 4.1
l afrique » en afrique
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology 3 information wages trade 4.2 communication costs et developpement l afrique.*.