Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.1 communications » 4.1 communication, 3.1 communications, 4.1 communicating
integration james » integration jaime, integration ja, integration japan
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
4.2 integration » 2.2 integration, 3.2 integration, 5.2 integration
technology 4.2 » technology 2.2, technology 3.2, technology 4.1
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 4.2 integration james trade 4.1 communications costs du developpement en afrique.*.