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 code » information model, information case, information cost
developpement la » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
la afrique » l afrique, la fabrique, en afrique
code rate » code re, code role
rate 2.3 » rates 2.3, rate 2.4, rate 4.3
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 trade information code rate 2.3 communication costs 4 developpement la afrique.*.