Victoria Police is appealing for public help to help find missing sisters Bobbie-Jade Mai, Edward May and Piper-Villy Maddy.
Children aged 11, 9 and 9 months have not been seen since October 19. They are believed to be with their mother.
Concern is maintained because of the welfare of three children due to their age. They are known to frequently use the Bendigo and Kerang areas.