Perhaps you should try some spelling variations:
communication model » communication media
data communication » data communications
information gaps » information gap
technologies 4 » technologies _
4 information » 2 information, 1 information
china africa » cpia africa, china asia
gaps de » gaps do, camps de, gaps new
de data » e data, wide data, de datos
model a » model 1

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information gaps de data communication model a development china africa.*.