Perhaps you should try some spelling variations:
visual communication » oral communication, personal communication
information centers » information contents, information officers
technologies 2 » technologies _, technologies 4
centers knew » centers money
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
knew visual » new visual
costs 4 » costs _, costs a, costs 4.2

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 knew visual communication costs 4 developing 1 africa.*.