Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
trade information » price information, private information, trade integration
technology trade » technology trends, technology transfer, technology transfers
3 communications » 3 communication, 2 communications, 4 communications
port development » export development, airport development, forest development
information age » information storage, information access, information about
development d » development ds, development 1, development did
costs port » costs part, costs export, costs short
d afrique » l afrique, en afrique, de l'afrique
age case » ages case, age care, age cave
case 3 » case 1, case 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 age case 3 communications costs port development d afrique.*.