Perhaps you should try some spelling variations:
developpement du » developpement de, developpement des, developpement et
technology trade » technology trends, technology transfer, technology transfers
1 communication » 10 communication, 3 communication, 4 communication
a developpement » au developpement, de developpement, le developpement
du afrique » en afrique, l afrique, de l'afrique
der trade » der trager, der traum, fur trade
trade 1 » 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 1 communication costs a developpement du afrique.*.