Perhaps you should try some spelling variations:
vaccine communication » machine communications, active communication, reactive communication
communication en » communications en, communication et, communication el
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
des variation » does variation, de variation, der variation
doner vaccine » dose vaccine, doses vaccine, new vaccine
variation im » variation _, variation 6, variation des
en le » len le, en la, et le
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation im doner vaccine communication en le developpement en afrique.*.