Hong Kong family looking for a helper

We are a family with 5 members, the elder child is 9 years old while the younger child is 6 years old. We live with grandfather who has a good health condition and can take care of himself. My husband is a disability (stroke) and is a bedridden patient. We are looking for a helper who can help grandfather to take care two children and do household work, like cooking and cleaning work sometimes need to help grandfather to help my husband by moving him from the bed to the wheelchair only. Grandfather can assist the helper of the household work as well. so it will not be too hard work although we have 5 family members in our home. :)