Chinese family looking for helper

We are a big family, 2 kids (9 and 12), 1 couple and 2 parents, and one lovely dog. We live in 2 storey house in discovery bay. We have two helpers (one with us 9 years and the other one with us 5 years) , but one just decided to go back to Philippine. Now we are looking for replacement. The duty is cooking for family, taking care of kids, cleaning/washing/ironing, walking the dogs. Two helpers shared workload. For anyone we hire, we intend to keep you for long time.