Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
developpement en » developpement et, developpement des, developpement de
4.1 integration » 3.3 integration, 4 integration, 3 integration
4 developpement » de developpement, le developpement, et developpement
technology 4.1 » technology 3.1, technology 2.1, technology 1
trade 2.3 » trade 2.2, trade 2.1, trade 1.3
3 trade » 1 trade, 4 trade, 2 trade
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 4.1 integration 3 trade 2.3 communication costs 4 developpement en afrique.*.