Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
child development » world development
information need » information needs, information needed, information speed
la communication » data communication, data communications
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
network child » networks china, network cloud, work child
need de » need le, need fide, need one

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

• Adding a wildcard symbol may retrieve word variants: technologies a information need de la communication network child development _ afrique.*.