Perhaps you should try some spelling variations:
information wages » information age, information wants, information war
3.7 communication » 3.2 communication, 2.7 communication, 3.5 communication
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
4 information » 2 information, 1 information
technology 4 » technology _, technology 1, technology 3
wages race » wages trade, wage rate, wages case
l afrique » en afrique
race 3.7 » races 3.5, range 3.7, race 1.4
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 4 information wages race 3.7 communication costs 4 developpement l afrique.*.