Perhaps you should try some spelling variations:
vaccine communication » machine communications, active communication, reactive communication
communication 3.3 » communication _, communication a, communication 1
use development » case development, sme development, e development
development law » development latin, development 1
technologies 3 » technologies _, technologies 4, technologies 2
law afrique » l afrique
3 informal » _ informal, vs informal
channels 3 » channels _, channels 4, channel 3
3 vaccine » _ vaccine, 1 vaccine, 2 vaccine
3.3 use » 3.3 user, 4.3 use, 5.3 use

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 informal channels 3 vaccine communication 3.3 use development law afrique.*.