Perhaps you should try some spelling variations:
communication 22.1 » communication 2.1, communications 2.2.1, communication 8.2.1
oral communication » personal communication
et developpement » de developpement, le developpement, test development
developpement et » developpement des, developpement de, development east
variation behn » variation bei, variation des, variation der
typologien de » typologien der, typologie des, typologie der
de variation » der variation, die variation, does variation
et afrique » en afrique, l afrique
behn does » being does, ban does
does oral » does formal, does oil
22.1 et » 22.1 heat

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• Adding a wildcard symbol may retrieve word variants: typologien de variation behn does oral communication 22.1 et developpement et afrique.*.