I think that you didn't succeed doesn't mean that they will fail.since i ve tested it already, i can tell you for sure those farms dont work.
I used 6 pedes of mine in a 35x35 space. (lots of hides - lots of food)
2 laid eggs in slightly different time periods.
1 ate the eggs , 1 was eaten along with the eggs by the other.
I now reduced the number but i dont expect any better.
These farms have like 50 pedes per square meter, its impossible to breed and lay eggs without getting eaten. And i doubt chinese even feed them properly.
With the local climate reproduce the centipede, humidity.
Wild centipede didn't so much.