Perhaps you should try some spelling variations:
communication cross » communication costs
open communication » human communication, 3 communication, 4 communication
technologies 2 » technologies _, technologies 4
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
developing em » developing e, developing eq, developing amp
contents 3 » contents 1, contents _, contents i
cross 2.4 » loss 2.4
em africa » 1 africa
3 open » 2 open

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information contents 3 open communication cross 2.4 developing em africa.*.