Don't count your chickens before they hatch

Meaning

Do not rely on something good happening before it actually happens.

Vietnamese

Chưa đỗ ông nghè đã đe hàng tổng. — Chưa có kết quả đã vội mừng, vội khoe.

Examples

• He booked a holiday before the offer arrived — don't count your chickens before they hatch.
• We might win, but don't count your chickens before they hatch.