Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
1 integration » 10 integration, 11 integration, 12 integration
integration 4 » integration 3
technology 1 » technology _
trade 3.2 » trade 2.2, trade 2, trade 4.1
costs du » costs _, costs 4, costs a
4 trade » 1 trade

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

• Adding a wildcard symbol may retrieve word variants: technology 1 integration 4 trade 3.2 communication costs du developpement en afrique.*.