Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.3 communications » 3.1 communications, 3.3 communication, 2.3 communication
trade information » price information, private information, trade integration
technology trade » technology trends, technology transfer, technology transfers
et developpement » de developpement, le developpement, test development
developpement du » developpement de, developpement des, developpement et
information age » information storage, information access, information about
du afrique » en afrique, l afrique, de l'afrique
age cases » age causes, age case, use cases
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 age cases 3.3 communications costs et developpement du afrique.*.