A search for Pak Wansuh only turns up her other books, not the Asia Publisher one.

A direct search by name does not return “The Poet of Wonmi-dong”

Neither does a search by name for Gong Ji-young’s “Human Decency”

Some do show up:

But all in all, this is pretty bad, as it means even people who have heard of these books, or read reviews of them, won’t be able to find them!