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