Perhaps you should try some spelling variations:
developpement durable » developpement de
oral communication » personal communication
due developpement » de developpement, du developpement, le developpement
formation across » information across, variation across, variations across
communication 1 » communication _, communication a, communication 3
apologien der » typologien der, apologie des, ideologien der
der formation » der information, der reformation, der formativen
across rows » across roads, across modes
rows oral » roots oral
1 due » 1 die, _ due, 1 dum

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

• Adding a wildcard symbol may retrieve word variants: apologien der formation across rows oral communication 1 due developpement durable afrique.*.