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

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 human communication cross 2.4 developing a africa.*.