Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
trade information » price information, private information, trade integration
technology trade » technology trends, technology transfer, technology transfers
information what » information war, information when, information wants
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
what place » what price
place 4.2 » place 1.2, place 4.3, place 4.4
costs a » costs _, costs 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology trade information what place 4.2 communications costs a developpement en afrique.*.