Perhaps you should try some spelling variations:
data communication » data communications
interaction cost » interaction counts, interaction about, interaction how
technologies 2 » technologies _, technologies 4
2 interaction » 3 interaction, 3.2 interaction, 3.1 interaction
developing li » developing ai, developing l2, developing cil
4 developing » 3 developing
li afrique » l afrique, en afrique
cost data » test data
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 interaction cost data data communication costs 4 developing li afrique.*.