Perhaps you should try some spelling variations:
lea's communication » mass communication, crisis communication, leadership communication
lehr developpement » leur developpement, le developpement, de developpement
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
preface part » preface list
de afrique » de l'afrique, en afrique, l afrique
3 lehr » 3.2 lehr

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information preface part lea's communication 3 lehr developpement de afrique.*.