Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
des developpements » deux developpements, de developpement, et developpements
developpements en » developpement en, developpement et, developpements de
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
variation 6 » variation _, variations _, variation des
der open » der oper, der opec, der tropen
6 der » _ der, 2 der, 3 der
a des » a der, a das

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 a des developpements en afrique.*.