Perhaps you should try some spelling variations:
trade information » price information, private information, trade integration
information rates » information states, information ratio, information rules
6.4 communication » 5.4 communication, 1.4 communication, 2.4 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 6.4 » race 1.4, grace 6.2, races 6.3
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 rates race 6.4 communication costs 4 developpement en afrique.*.