Perhaps you should try some spelling variations:
tropen communication » open communication, proper communication, spoken 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 tropen » den tropen, der treppen, der open
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 tropen communication a des developpements en afrique.*.