I need your advice.

Oaky so I have 2 dogs there brothers about a year or so old now. Well one is very potty trained. But one is iffy on potty trained. We have tried many methods with him. Doesn’t work. They are medium sized dogs & we have a large yard so I usually let me run around to get out there energy lol. But the one who isn’t potty train we have them kennel trained for night time because well they think it’s funny to rip the stitches out of things just the stitches nothing else😂 it’s actually kind of cute & funny & smart they know how to do it. But he doesn’t whin or anything just goes in the house so our house smells. I clean & mop everytime. I was wondering what you guys may use on tile floor to get rid of the smell? Help me out! It’s not bad & you can’t really smell it unless your face is near the floor. I just wanna know how to get rid of it? Why I’m still working with him.