Perhaps you should try some spelling variations:
china communications » china communication, china's communications, chile communications
communications 6.2 » communication 6.2, communications 2.2, communications 6.9
some development » sme development, women development, site development
technologies 2 » technologies _, technologies 4
development l » development li, development 1, development law
contents 4.1 » contents 3.1, contexts 4.1, contents 5.1
4.1 china » 1.1 china, 2.1 china, 3.1 china
l afrique » en afrique
6.2 some » 5.2 some, 1.2 some, 3.2 some

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information contents 4.1 china communications 6.2 some development l afrique.*.