Perhaps you should try some spelling variations:
communications network » communications networks, communication network, communication networks
scale development » estate development, trade development, sme development
development model » development models, development middle
a communications » a communication, data communications, a communicative
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
network scale » network case, network space, network state

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

• Adding a wildcard symbol may retrieve word variants: technologies a information law _ a communications network scale development model afrique.*.