Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication costa » communication costs, communications costs, communication cote
de communication » mobile communication, online communication
developing asia » development asia, developing a
technologies 2 » technologies _, technologies 4
e developing » 3 developing, 4 developing, 2 developing
asia africa » cpia africa, china africa
centers 3 » centers _, centers a, centers 3.3
3 de » 3 die, 3 der, 3 des

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information centers 3 de communication costa e developing asia africa.*.