Perhaps you should try some spelling variations:
technologies from » technology from, technologies co, technologies art
informal century » informal venture, informal sector, informal sectors
ec communication » de communication, 3 communication, 4 communication
15 developing » 1 developing, 5 developing, 10 developing
developing em » developing e, developing eq, developing amp
century book » century bce
em africa » 1 africa
costs 15 » costs 5, costs 1, costs 15.3
book ec » book c, book end

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

• Adding a wildcard symbol may retrieve word variants: technologies from informal century book ec communication costs 15 developing em africa.*.