At 5 months old and a life in the shelter, the dog has no concept of "Potty Here" and "Don't Potty Here". You will have to TAKE her to the spot you want her to potty. So, put her on a leash, take her for a walk around the yard or outside or wherever she is supposed to go potty. When she goes potty, praise her and reward her.
I don't completely understand what you mean by "before we start bringing her in the house she stays in patio & back yard", but she is going to learn nothing about potty training hanging outside the house. If your goal is to have her live in the house, she needs to be in the house with you so she can learn that "outside" is the place to potty. You have to be a very active part of her potty training. Dogs don't learn it by themselves. They just go where and when they need to go.
When she is out and about in her living space, she needs to be supervised 100% of the time so when you see her needing to potty you can take her outside at once. You should provide plenty of potty breaks when the pup is active. You must take her outside. At this point, she can't simply be let out. If she has an accident, just quietly clean it up. When you can't supervise, the pup should be crated.
You might also try taking some of her waste and putting it out in the yard, or taking her to a place you know another dog has gone potty. Sometimes the scent will entice them to go potty there. She might not realize that she's supposed to go potty on grass in the first place.