Perhaps you should try some spelling variations:
communication efforts » communication networks, communications networks, communication network
oral communication » mobile communication, _ communication, risk communication
child development » world development
information need » information needs, information based, information age
development can » development bank, development band, development case
efforts child » affects child
can africa » urban africa, china africa

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 efforts child development can africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information need de oral communication efforts child development can africa.*.