Perhaps you should try some spelling variations:
communication model » communication media
era communication » la communication, a communication, era communicating
em developpement » et developpement, en developpement, et developpements
developpement de » developpement des, developpement durable
introduction 3 » introduction 3.2, introduction 3.1.1
technology 2 » technology _, technology 1, technology 3
de afrique » de l'afrique, en afrique, l afrique
model em » model ecm, model ee, model eu

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

• Adding a wildcard symbol may retrieve word variants: technology 2 introduction 3 _ era communication model em developpement de afrique.*.