Perhaps you should try some spelling variations:
proper communication » power communication, prone communication, provider communication
does developpement » de developpement, des developpements, does development
how variation » how valuation, does variation, four variation
typology how » typology from, typology _, typology 4.1
variation 6 » variation _, variations _, variation des
des afrique » en afrique, de l'afrique
der proper » der property, over proper, der oper
6 der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: typology how variation 6 der proper communication _ does developpement des afrique.*.