HKFA lists:
Chan Bo-Cheung / (???) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
1. Pursuit
2. Storm Killer
3. Tiger Killer
4. The gambler and his kung fu master
5. Love cross-road
6. Hot blood
7. Little things mean a lot
8. Wedding bells, wedding belles

Chan Bo-Yeung / (???) http://hkmdb.com/db/people/view.mhtml?i ... y_set=big5
1. Daughter and father
2. Our darling coach
3. Short cuts
4. The gambler and his kung fu master
5. My kung fu master
6. Hot blood
7. Nomad

It seems both of them are credited in The gambler and kung fu master and hot blood.

However, most movies are credited under Chan Bo-Cheung.

Are they the same person?

Also, movie credit Yee Poon http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng but not Cheng Ying-Git .
However, HKFA & the poster credited Cheng Ying-Git http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng but not Yee Poon .

Cd they be the same person?

Can anyone confirm and update?

I don't think so. HKFA would not list separately in same film if they were mistaking one for other.

Also, listed separately here:

http://www.yesasia.com/us/below-the-lio ... /info.html
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and here:
http://www.patpoon.net/works/teledrama/1977wwwy.htm
?????? ????????????????
Perhaps brother, brother and sister?