Their mother is in hospital dying from breast cancer. Dad is her carer and hasn't got time to work. He isn't coping and is in a bad way himself.
If you are in hospital in Vietnam you need someone to care for you and provide food. Since dad has been caring for her for quite some time now, the family have had to borrow, and borrow more for her treatment, and now she is passing away.
There are no funds for the girls to continue their education. But now they are sponsored thanks to Morwenna and one of her friends. This means these bright girls will be able to continue their schooling.