Perhaps you should try some spelling variations:
vaccine communication » machine communications, active communication, reactive communication
communication cross » communication costs
en developpement » et developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
von information » von informationen, can information
technology von » technology vi, technology vt, technology vision
information 2 » information 3
end vaccine » ant vaccine, aids vaccine, anti vaccine
de afrique » de l'afrique, en afrique, l afrique
cross en » cross sea, cross _, cross 1
2 end » 12 end, _ end, 1 end

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

• Adding a wildcard symbol may retrieve word variants: technology von information 2 end vaccine communication cross en developpement de afrique.*.