Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
grey communication » de communication, why communication, way communication
based information » basic information, based innovation, land information
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
developing a » developing _
contents 3 » contents 1, contents _, contents i
costs 1.4 » costs 11.4, costs 12.4, costs 4.4
a africa » 1 africa, can africa, em africa
3 grey » _ grey

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

• Adding a wildcard symbol may retrieve word variants: technologies based information contents 3 grey communication costs 1.4 developing a africa.*.