Perhaps you should try some spelling variations:
power developpement » power development, power developments, powers development
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation did » variation des, variation der, variation im
did soe » did so
soe 4 » boe 4, ioe 4, sos 4

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation did soe 4 communication _ power developpement en afrique.*.