Perhaps you should try some spelling variations:
lea's communication » mass communication, crisis communication, leadership communication
ethnology computer » technology computer, technology computers
interaction et » interactions et, interaction _, interaction 1
4 developing » 3 developing
developing a » developing _
data lea's » data leaks, data lead, data leak
a afrique » l afrique, en afrique
et data » det data, pet data, set 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: ethnology computer interaction et data lea's communication costs 4 developing a afrique.*.