Perhaps you should try some spelling variations:
oral communication » personal communication
communication pt » communication 3, communication 1, communication 2
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
firm oral » firm rural
pt au » pt a, et au

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

• Adding a wildcard symbol may retrieve word variants: typology der variation _ firm oral communication pt au developpement en afrique.*.