Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
trade information » price information, private information, trade integration
information costs » information contents, information centers, information content
technology trade » technology trends, technology transfer, technology transfers
2 communications » 2 communication, 3 communications, 4 communications
development du » development d, development ds, developpement du
4 development » 2 development, 4 developing
costs french » corpus french, roads french, camps french
du afrique » en afrique, l afrique, de l'afrique
french 2 » french _, french 5, french a
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 costs french 2 communications costs 4 development du afrique.*.