Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
de developpement » sme development
developpement de » developpement des, developpement durable
technologies 4 » technologies _
4 information » 2 information, 1 information
de afrique » de l'afrique, en afrique, l afrique
policy 16 » policy 1, policy 6, policy 10
16 verbal » 1.1 verbal, 10 verbale, _ verbal
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information policy 16 verbal communication a de developpement de afrique.*.