Perhaps you should try some spelling variations:
information centers » information contents, information officers
class communication » mass communication, plans communication, crisis communication
technologies co » technologies _, technologies 4, technologies 2
co information » do information, 2 information, 1 information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
centers 1 » centers 10, centers 21, centers _
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
1 class » _ class

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

• Adding a wildcard symbol may retrieve word variants: technologies co information centers 1 class communication costs 2.2 developing _ africa.*.