Perhaps you should try some spelling variations:
oral communication » personal communication
developments codas » developments focal, developments notes, developments towards
communication 1.1 » communication 4.1, communication 7.1, communication 1.3
variation using » variations during, variation und, variation among
eu developments » eu development, new developments, key developments
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
using does » using deep, being does, using aes
does oral » does formal, does oil
1.1 eu » 2.1 eu, 1.1 el, 3.1 eu

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation using does oral communication 1.1 eu developments codas afrique.*.