Perhaps you should try some spelling variations:
communication protocols » communication processes, communication practices
china communication » china communications, chief communication, china's communications
information age » information storage, information access, information about
4 information » 2 information, 1 information
3 development » 2 development
development l » development li, development 1, development law
technology 4 » technology _, technology 1, technology 3
protocols 3 » protocols _, protocol 3, protocols 5
6.2 china » 2.2 china, 4.2 china, 6.2 china's
l afrique » en afrique
age 6.2 » age 1.2, age 4.2, age 6.1

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

• Adding a wildcard symbol may retrieve word variants: technology 4 information age 6.2 china communication protocols 3 development l afrique.*.