Perhaps you should try some spelling variations:
personal communication » interpersonal communication
der developpement » de developpement, des developpements, leur developpement
developpement en » developpement et, developpement des, developpement de
communication 2 » communication _, communication a, communication 3
theologie der » ideologie der, typologie der, theorie der
der variation » de variation, does variation, die variation
variation 2 » variation 27, variation _, variation 6
4 personal » a personal, 1 personal, 1945 personal
2 der » _ der

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

• Adding a wildcard symbol may retrieve word variants: theologie der variation 2 4 personal communication 2 der developpement en afrique.*.