Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
der der » oder der, der de, dauer der
der den » oder den, der de, der daten
3 de » 3 die, 3 der, 3 des

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typology de variation ((der der) OR (der den)) oral communication 3 de developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology de variation ((der der) OR (der den)) oral communication 3 de developpement en afrique.*.