Perhaps you should try some spelling variations:
communication 2.2 » communications 2.2, communication 2.4, communication 3.2
de communication » mobile communication, online communication
developing areas » developing asia, developing east, developing a
2d developing » 2 developing, 20 developing, 24 developing
areas afrique » areas africa
contents 2.5 » contents 2.1, contents 2.3, contents 5.2.5
2.5 de » 2.5 die, 2.5 der, 2.5 dve
2.2 2d » 2.2 3d

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information contents 2.5 de communication 2.2 2d developing areas afrique.*.