Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
technologies exist » technologies bit, technologies series, technologies art
oral communication » personal communication
exist information » ist information, existing information, export information
century lived » century lever, century life, century land
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
lived oral » derived oral
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 exist information century lived oral communication costs 4 developing 1 africa.*.