Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
2.2 integration » 3.2 integration, 5.2 integration, 3.3 integration
technology 2.2 » technology _, technology 1, technology 3
de afrique » de l'afrique, en afrique, l afrique
der trade » der trager, der traum, fur trade
trade 4.1 » trade 2.2, trade 3.2
costs du » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 integration der trade 4.1 communication costs du developpement de afrique.*.