Perhaps you should try some spelling variations:
communication protocol » communication protocols, communication practices, communication policy
china communication » china communications, chief communication, china's communications
information 1999 » information 1995, information 1.9, information 1
developpement en » developpement et, developpement des, developpement de
3 developpement » de developpement, le developpement, et developpement
protocol 3 » protocol _, protocols _
3.2 china » 2.2 china, 3.1 china, 3.6 china
1999 3.2 » 1992 3.2, 1929 3.2, 1998 3.2

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 1999 3.2 china communication protocol 3 developpement en afrique.*.