Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
technology trade » technology trends, technology transfer, technology transfers
3 communication » 4 communication, de communication, data communication
a developpement » au developpement, de developpement, le developpement
de afrique » de l'afrique, en afrique, l afrique
der trade » der trager, der traum, fur trade
trade 3 » trade _, trade a, trade 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 integration der trade 3 communication costs a developpement de afrique.*.