Perhaps you should try some spelling variations:
drug developpement » drug development, du developpement, deux developpements
oral communication » personal communication
communication 2.2 » communications 2.2, communication 2.4, communication 3.2
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation von » variationen von, variation _, variation 6
les oral » new oral, u.s oral, vs oral
2.2 drug » 12.2 drug, 3.2 drug, 2.1 drug
von les » von lea, von led, von lee

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation von les oral communication 2.2 drug developpement en afrique.*.