Perhaps you should try some spelling variations:
vaccine communication » machine communications, active communication, reactive communication
technologies co » technologies _, technologies 4, technologies 2
communication 3 » communication _, communication a
co information » do information, 2 information, 1 information
information 1 » information 2, information 3, information 3.2
5.12 vaccine » 5.1 vaccine, 5.2 vaccine, 5.3 vaccine
a developing » a development
developing a » developing _
a afrique » l afrique, en afrique
1 5.12 » 17 5.12, 1 5.2, 1 5.1

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

• Adding a wildcard symbol may retrieve word variants: technologies co information 1 5.12 vaccine communication 3 a developing a afrique.*.