Perhaps you should try some spelling variations:
trade information » price information, private information, trade integration
information rates » information states, information ratio, information rules
5.4 communication » de communication, data communication
technology trade » technology trends, technology transfer, technology transfers
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
rates race » rates rates, rates raise, rat race
race 5.4 » race 1.4, race 6.4, case 5.4
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 trade information rates race 5.4 communication costs 4 developpement en afrique.*.