Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
integration wie » integration sowie, integration wage, integration wege
2 integration » 3 integration, der integration, data integration
technology 2 » technology _, technology 1, technology 3
wie trade » die trade, we trade, white trade
trade 2.2 » trade 3.2, trade 4.1
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 integration wie trade 2.2 communication costs du developpement en afrique.*.