Perhaps you should try some spelling variations:
oper communication » open communication, proper communication, power communication
does developpement » de developpement, des developpements, does development
developpement en » developpement et, developpement des, developpement de
communication 4 » communication _, communication a, communication 3
variation des » variation _, variation 6, variation series
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
dr oper » der oper, der opec, der open
4 does » 2 does

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

• Adding a wildcard symbol may retrieve word variants: typology de variation des dr oper communication 4 does developpement en afrique.*.