Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
2.2 communications » 2.2 communication, 4.2 communications, 3.2 communication
trade information » price information, private information, trade integration
technology trade » technology trends, technology transfer, technology transfers
information age » information storage, information access, information about
amy development » key development, fly development, soy development
development ds » development d, development does, development desd
ds afrique » en afrique, l afrique, de l'afrique
age space » angle space, image space, large space
space 2.2 » space 2.1, space 3.2, space 3.3
costs amy » 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 space 2.2 communications costs amy development ds afrique.*.