Perhaps you should try some spelling variations:
communication models » communications models, communication model, communication modes
oral communication » personal communication
technologies 4 » technologies _
4 information » 2 information, 1 information
models human » model human, modern human, modeling human
flows how » flow how, flow low, flows do
1 afrique » l afrique, en afrique, 1 enrique
how oral » how moral, how rural, how arab

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information flows how oral communication models human development 1 afrique.*.