Perhaps you should try some spelling variations:
oral communication » personal communication
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
development ds » development d, development does, development desd
variation der » variation des, variation bei, variation _
ds afrique » en afrique, l afrique, de l'afrique
does oral » does formal, does oil
3 ads » 3 adas, 3 abs, 3 add
_ ads » _ add, _ adb, _ aus

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 der does oral communication ((3 ads) OR (_ ads)) development ds afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie does variation der does oral communication ((3 ads) OR (_ ads)) development ds afrique.*.