Perhaps you should try some spelling variations:
communication efforts » communication networks, communications networks, communication network
mass communication » risk communication, _ communication, mobile communication
information based » information case, information age, information use
development china » development bank, development a
gap information » can information, care information, bank information
technology gap » technology park, technology _, technology ict
a development » _ development, clean development, asian development
china africa » cpia africa, china april, can africa
efforts a » efforts _, effort _, exports a
based de » based ndc, based _
de mass » does mass, ice mass

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology gap information based de mass communication efforts a development china africa.~.
• Adding a wildcard symbol may retrieve word variants: technology gap information based de mass communication efforts a development china africa.*.