Perhaps you should try some spelling variations:
personal communication » interpersonal communication
dams developpement » dams development, de developpement, du developpement
developpement en » developpement et, developpement des, developpement de
communication 2 » communication _, communication a, communication 3
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
variation 6 » variation _, variations _, variation des
1 personal » a personal, 4 personal, 1945 personal
2 dams » 2 das, _ dams, 6 dams

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variation 6 1 personal communication 2 dams developpement en afrique.*.