Perhaps you should try some spelling variations:
information centers » information contents, information officers
face communication » voice communication, de communication, time communication
technologies 4 » technologies _
7.3 developing » 3.3 developing, 1.3 developing, 2.2 developing
4 information » 2 information, 1 information
developing 1 » developing _, developing a, developing e
centers a » centers _, center a, enters a
costs 7.3 » costs 2.3, costs 4.3, costs 5.3
a face » a fact

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information centers a face communication costs 7.3 developing 1 africa.*.