Perhaps you should try some spelling variations:
du developpement » de developpement, le developpement, et developpement
integration see » integration sleep, integration some, integration series
2 communication » 3 communication, 4 communication, 1 communication
technology zur » technology 4ir, technologien zur, technology _
des afrique » en afrique, de l'afrique
see trade » seed trade, free trade, size trade
costs du » costs _, costs 4, costs a
trade 2 » 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 zur integration see trade 2 communication costs du developpement des afrique.*.