Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
information chapter » information center, information centers, information exchanges
technologies about » technologies art, technologies bit, technologies box
about information » account information, labor information, about inflation
communication 6.5 » communication 5.5, communication 6.2, communication 6.1
developing areas » developing asia, developing east, developing a
4 developing » 3 developing
areas africa » arabs africa, dress africa, farmers africa
chapter 3 » chapter 2, chapter 1
3 device » 3 devices, _ device, a device
6.5 4 » 6.5 _, 6.5 a, 6.5 2

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

• Adding a wildcard symbol may retrieve word variants: technologies about information chapter 3 device communication 6.5 4 developing areas africa.*.