Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.2 communications » 3.2 communication, 3.1 communications, 4.2 communications
interaction trade » integration trade, intervention trade, interaction aware
du developpement » de developpement, le developpement, et developpement
developpement et » developpement des, developpement de, development east
1 interaction » 10 interaction, 17 interaction, 19 interaction
technology 1 » technology _
et afrique » en afrique, l afrique
trade 3.2 » trade 2.2, trade 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 1 interaction trade trade 3.2 communications costs du developpement et afrique.*.