Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
oral communication » personal communication
child development » world development
information need » information needs, information needed, information speed
development can » development case, development co, development canada
network child » networks china, network cloud, work child
can africa » urban africa
need de » need le, need fide, need one
de oral » de otras, new oral

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information need de oral communication network child development can africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information need de oral communication network child development can africa.*.