Perhaps you should try some spelling variations:
development chapter » development center, development case
oral communication » personal communication
farm development » term development, from development, team development
die variation » de variation, does variation, der variation
variation des » variation _, variation 6, variation series
typology die » typology _, typology 4.1, typology 6
eg oral » new oral

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

• Adding a wildcard symbol may retrieve word variants: typology die variation des eg oral communication _ farm development chapter afrique.*.