Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
information costs » information contents, information centers, information content
developing human » development human, developing a, developing asia
technologies 2 » technologies _, technologies 4
4 developing » 3 developing
2 device » _ device, a device, 4 device
costs 2 » costs 20, costs _, costs a
costs 4 » costs _, costs a, costs 4.2
accessed. » access., assessed., accepted.

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information costs 2 device communication costs 4 developing human accessed.*.