Perhaps you should try some spelling variations:
trade information » price information, private information, trade integration
information wages » information age, information wants, information war
4.3 communication » 2.3 communication, 4.1 communication, 4 communication
technology trade » technology trends, technology transfer, technology transfers
le developpement » de developpement, sme development
developpement l » developpement il, developpement la, developpement de
wages race » wages trade, wage rate, wages case
l afrique » en afrique
race 4.3 » race 4.2, race 8.3, space 4.3
costs le » 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 trade information wages race 4.3 communication costs le developpement l afrique.*.