Don't looks convincing to me - 2 directors: ??(1) + ??? (Or is it an unknown Alias name?)
http://hkmdb.com/db/movies/view.mhtml?i ... ay_set=eng

Appears that you have done that entry, right,
as the credits images all were uploaded by you.

So how come, that there are (already) two directors
as an entry, although just one in these credits?

Who added a second director and why,
on which basis?

?I? ?s?u?s?p?e?c?t? ?t?h?a?t? ?C?h?o?w? ?M?i?n?g? ?a?n?d? ?C?h?o?w? ?M?i?n?g?-?H?u?n?g? ?a?r?e? ?t?h?e? ?s?a?m?e? ?p?e?r?s?o?n? ?(?b?o?t?h? ?a?p?p?e?a?r? ?t?o?g?e?t?h?e?r? ?i?n? ?"?T?h?e? ?T?r?a?g?e?d?y? ?C?a?m?e? ?f?r?o?m? ?V?i?e?t?-?N?a?m?"?)? ?b?u?t? ?s?i?n?c?e? ?C?h?o?w? ?M?i?n?g? ?d?o?e?s? ?n?o?t? ?a?p?p?e?a?r? ?i?n? ?t?h?e? ?c?r?e?d?i?t?s? ?o?f? ?"?W?a?n?d?e?r?i?n?g? ?K?n?i?g?h?t?"?,? ?i?f? ?n?o?b?o?d?y? ?s?t?o?p?s? ?m?e? ?i?n? ?1?5? ?d?a?y?s? ?I? ?w?i?l?l? ?r?e?m?o?v?e? ?h?i?m?.?

I added more credits to The Tragedy Came from Vietnam and 'Chou Ming' and 'Chou Ming-hung' are given separate credits there; one as a lyricist and writer and the other as the "acting director". Whoever added the movie initially created that 'Chou Ming' as a new person, however. 'Chou Ming-hung' is credited as a writer on The Devil Woman of Tang Dynasty, in which the actor Chou Ming also appears. Without any concrete proof that they are one and the same, though, I think the most we can say with this info is that there is a definite relationship between the two. We should probably add the two as they were credited and keep it that way.

OK, in this case I will not merge them.