Perhaps you should try some spelling variations:
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
integration wie » integration sowie, integration wage, integration wege
2 communication » 3 communication, 4 communication, 1 communication
wie trade » die trade, we trade, white trade
costs au » costs a, costs amy, costs _
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 _ integration wie trade 2 communication costs au developpement en afrique.*.