Perhaps you should try some spelling variations:
information centers » information contents, information officers
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
2.1 information » 3.1 information
a developing » a development
developing v » developing av, developing _, developing a
centers a » centers _, center a, enters a
v africa » 1 africa, em africa
costs a » costs _, costs 4
a de » a die, a der, a des

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 centers a de communication costs a developing v africa.*.