Perhaps you should try some spelling variations:
communication protocols » communication processes, communication practices
vaccine communication » machine communications, active communication, reactive communication
do developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
technologies 2 » technologies _, technologies 4
information 2 » information 3
protocols do » protocolos de, protocols _, protocols 5
5.1 vaccine » 5.12 vaccine, 5.2 vaccine, 5.3 vaccine
l afrique » en afrique
2 5.1 » 29 5.1, a 5.1, _ 5.1

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 2 5.1 vaccine communication protocols do developpement l afrique.*.