Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information century » information centers, information centre, information center
technologies 2 » technologies _, technologies 4
developing em » developing e, developing eq, developing amp
4 developing » 3 developing
4 personal » a personal, 1 personal, 1945 personal
century 4 » century _, century a, century 1
em africa » 1 africa
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 century 4 personal communication costs 4 developing em africa.*.