Perhaps you should try some spelling variations:
oral communication » personal communication
leur developpement » le developpement, deux developpements, de developpement
developpement de » developpement des, developpement durable
does variation » de variation, der variation, die variation
theorie does » theorie des, theorie der, theorie die
variation 6 » variation _, variations _, variation des
de afrique » de l'afrique, en afrique, l afrique
6 hinves » 6 hive

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

• Adding a wildcard symbol may retrieve word variants: theorie does variation 6 hinves oral communication media leur developpement de afrique.*.