Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
oral communication » personal communication
technologies aids » technologies varies, technologies a, technologies de
urban development » human development
aids information » chandos information, series information
information et » l'information et, information 2, information 1
modes urban » modern urban, notes urban
de oral » de otras, new oral

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

• Adding a wildcard symbol may retrieve word variants: technologies aids information et de oral communication modes urban development _ afrique.*.