Can my 15 year old daughter come live with me?

My 15year old's mother has custody and I get her every other weekend and most all Summer break. The mother's house environment is very unhealthy. Drugs, partying, neglect, emotional abuse, manipulation, etc. the list goes on. My 15 year old daughter has been playing with the thought of coming to live with me but she doesn't want to hurt her mother's feelings. She has been manipulated into guilty thoughts about leaving. My daughter is not doing too welk in school and when I ask her she says it is because stress at home. Is there a way to get her to realize that she can make the decision to go back to court in order for me to have custody of her? Please help. It hurts seeing my child having to live in such an environment. We live in South Carolina.