Perhaps you should try some spelling variations:
oral communication » personal communication
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
its variations » cost variations, rate variations, _ variations
typologie its » typologie des, typologie et, typologie cices
de afrique » de l'afrique, en afrique, l afrique
6 made » 6 make, i made, 1 made
a le » a les, a la, a l

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie its variations ((6 made) OR (_ made)) oral communication a le developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie its variations ((6 made) OR (_ made)) oral communication a le developpement de afrique.*.