Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology trade » technology trends, technology transfer, technology transfers
a communications » a communication, data communications, a communicative
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
integration 4 » integration 3
4 practices » 2 practices, 3 practices, 4 practical
practices a » practices _, practices 5, practices act
de afrique » de l'afrique, en afrique, l afrique
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 integration 4 practices a communications costs a developpement de afrique.*.