Historical clue formulations

• Bok ___ — 2025-11-30
• Bok ___ (Chinese vegetable) — 2024-05-20
• ___ sum (leafy vegetable in Chinese cuisine) — 2022-06-17
• La ___ (Chinese food brand) — 2008-10-08
• ___ sum (Chinese flowering cabbage) — 2004-01-10
• Bok ___ — 2003-05-03
• Bok ___ (Chinese vegetable) — 1998-01-15