Perhaps you should try some spelling variations:
oral communication » personal communication
developments codas » developments focal, developments notes, developments towards
communication 11 » communication 1.1, communication 101, communication 1
key developments » key development, new developments, _ developments
variation using » variations during, variation und, variation among
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
11 key » 1.1 key, 19 key, 10 key

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 11 key developments codas afrique.*.