Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologies co » technologies _, technologies 4, technologies 2
co information » do information, 2 information, 1 information
2 developing » 3 developing, 4 developing, 2 development
developing 1 » developing _, developing a, developing e
contents 4 » contents 1, contents _, contents i
4 personal » a personal, 1 personal, 1945 personal
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies co information contents 4 personal communication costs 2 developing 1 africa.*.