Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
3.1 interaction » 3.2 interaction, 3 interaction, 2 interaction
technology 3.1 » technology 1, technology 2.2, technology _
model trade » modern trade, model traem, model tree
de afrique » de l'afrique, en afrique, l afrique
trade 3.2 » trade 2.2, trade 2, trade 4.1
costs le » 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 3.1 interaction model trade 3.2 communication costs le developpement de afrique.*.