Perhaps you should try some spelling variations:
transfer interactions » transfer operations, transport interaction, transfer intervention
oral communication » personal communication
de developpement » sme development
developpement de » developpement des, developpement durable
interactions 5 » interactions _, interactions 4, interactions a
de afrique » de l'afrique, en afrique, l afrique
low oral » low oil, new oral
5 low » _ low, a low, 5 how
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: technology transfer interactions 5 low oral communication a de developpement de afrique.*.