Perhaps you should try some spelling variations:
des developpement » des developpements, de developpement, le developpement
interaction have » interaction aware, interaction layer, interaction a
3 communication » 4 communication, de communication, data communication
developpement l » developpement il, developpement la, developpement de
1 interaction » 10 interaction, 17 interaction, 19 interaction
technology 1 » technology _
have trade » slave trade, have made
costs des » costs fees
l afrique » en afrique
trade 3 » trade _, trade a, trade 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology 1 interaction have trade 3 communication costs des developpement l afrique.*.