Perhaps you should try some spelling variations:
oral communication » personal communication
developpements l » developpements de, developpement il, developpement la
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
l afrique » en afrique
die oral » die moral, die orte
1 deux » 10 deux, a deux, 3 deux
2 deux » a deux

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: "typologie does variation _ die oral communication ((1 deux) OR (2 deux)) developpements l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie does variation _ die oral communication ((1 deux) OR (2 deux)) developpements l afrique.*.