Perhaps you should try some spelling variations:
trade information » price information, private information, trade integration
2.3 communication » 3.2 communication, de communication, 4 communication
technology trade » technology trends, technology transfer, technology transfers
information wage » information age, information war, information wants
developpement en » developpement et, developpement des, developpement de
e developpement » de developpement, le developpement, et developpement
wage rate » wage rates
rate 2.3 » rates 2.3, rate 2.4, rate 4.3
costs e » 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 wage rate 2.3 communication costs e developpement en afrique.*.