Perhaps you should try some spelling variations:
get communication » et communication, debt communication, de communication
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
23.4 developing » 13.4 developing, 2.4 developing, 3.4 developing
contents 3.2 » content 3.2, contents 3.1, contexts 3.2
developing 1 » developing _, developing a, developing e
costs 23.4 » costs 2.4, costs 4.4, costs 2.3
3.2 get » 3.2 gene, 3.2 gate, 3.2 genn

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information contents 3.2 get communication costs 23.4 developing 1 africa.*.