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