Perhaps you should try some spelling variations:
communication efforts » communication networks, communications networks, communication network
change information » trade information, chief information
oral communication » mobile communication, _ communication, risk communication
technology change » technological change, technological changes
information need » information needs, information based, information age
use development » sme development, e development, museum development

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

• Adding a wildcard symbol may retrieve word variants: technology change information need de oral communication efforts use development _ afrique.*.