Perhaps you should try some spelling variations:
oral communication » personal communication
communication 3.2 » communication 3.3, communication 3.4, communication 2
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
typologien does » typologie des, typologien der, typologie der
does variation » de variation, der variation, die variation
variation von » variationen von, variation _, variation 6
led oral » led total, new oral
von led » von lea, von lee, von leo
3.2 du » 3.2 di, 3.2 ds, 3.2 drug

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

• Adding a wildcard symbol may retrieve word variants: typologien does variation von led oral communication 3.2 du developpement en afrique.*.