Perhaps you should try some spelling variations:
china's communications » china communications, china communication, crisis communications
communications 3.1 » communication 3.1, communications 2.1, communications 3.3
user development » users development, use development, users developments
technologies pt » technologies _, technologies 4, technologies 2
development l » development li, development 1, development law
channels 7.1 » channels 5.1, channels 7.4, channels 7.7
pt informal » _ informal, 3 informal, vs informal
7.1 china's » 3.1 china's, 2.1 china's, 6.1 china's
l afrique » en afrique
3.1 user » 3.1 use, 3.2 user, 3.3 user

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

• Adding a wildcard symbol may retrieve word variants: technologies pt informal channels 7.1 china's communications 3.1 user development l afrique.*.