Need help to find Full OST of this one movie that have full heap of nice songs

I just saw this one movie called Fall in Love with My King on iQiYi channel on Youtube, and I find that the songs in the movie are really nice to hear.

But after all the things that i try to find the songs, I still meet with failure

Therefore, I try to ask for help in this forum

I hope you guys can help me

And thanks a lot

 newbiefan:

Have you tried Shazam?

it's not working

but thanks for your advice