Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
de developpement » sme development
developpement de » developpement des, developpement durable
communication 4 » communication _, communication a, communication 3
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
variation 6 » variation _, variations _, variation des
de afrique » de l'afrique, en afrique, l afrique
der open » der oper, der opec, der tropen
6 der » _ der, 2 der, 3 der
4 de » 4 die, 4 der, 4 des

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

• Adding a wildcard symbol may retrieve word variants: typology de variation 6 der open communication 4 de developpement de afrique.*.