Perhaps you should try some spelling variations:
developing cross » development cross, developing areas, development across
et communication » et communicatione, get communication, debt communication
technologies 1 » technologies _, technologies 4, technologies 2
cross african » across african, across africa, class african
4 developing » 3 developing
contents 12 » contents 1, contents 19, contents 12.1
costs 4 » costs _, costs a, costs 4.2
12 et » 12 e, 13 et

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information contents 12 et communication costs 4 developing cross african.*.