Perhaps you should try some spelling variations:
personal communication » interpersonal communication
use developpement » de developpement, le developpement, use development
developpement en » developpement et, developpement des, developpement de
communication 1 » communication _, communication a, communication 3
typologien der » typologie der, typologie des, apologien der
firms personal » aids personal, mtms personal, affairs personal
der variation » de variation, does variation, die variation
variation do » variation de, variation du, variation des
1 use » _ use, 2 use, 3 use

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation do firms personal communication 1 use developpement en afrique.*.