Perhaps you should try some spelling variations:
trade information » price information, private information, trade integration
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
technology trade » technology trends, technology transfer, technology transfers
information when » information what, information war, information wants
et developpement » de developpement, le developpement, test development
developpement du » developpement de, developpement des, developpement et
du afrique » en afrique, l afrique, de l'afrique
when coal » when goal, women coal, when can
costs et » 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 when coal 3.5 communication costs et developpement du afrique.*.