Perhaps you should try some spelling variations:
developpement durable » developpement de
verbal communication » nonverbal communication, virtual communication, oral communication
de developpement » sme development
formation among » formalization among, formation across
heis verbal » des verbal
among heis » among ers, among hiv, among jews
media de » media die, media der, media diet

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

• Adding a wildcard symbol may retrieve word variants: typology _ formation among heis verbal communication media de developpement durable afrique.*.