Perhaps you should try some spelling variations:
communication protocol » communication protocols, communication practices, communication policy
china communication » china communications, chief communication, china's communications
2.4 development » 2.3 development, 2.1 development, 2.2 development
4a information » a information, via information, lca information
technology 4a » technology 4, technology a, technology 4.1
information 2 » information 3
development l » development li, development 1, development law
protocol 2.4 » protocol 2.2, protocol 2.3, protocol 7.4
5.2 china » 2.2 china, 4.2 china, 5.2 china's
l afrique » en afrique
2 5.2 » 12 5.2, 2 3.2, 2 6.2

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

• Adding a wildcard symbol may retrieve word variants: technology 4a information 2 5.2 china communication protocol 2.4 development l afrique.*.