I know several Trinh Cong Son songs, including:

1. "Tình ca" (Love Song)
2. "Ru tình" (Lullaby)
3. "Hò kéo pháo" (Firecracker Pulling Song)
4. "Đêm thấy ta là thác đổ" (I Feel Like a Waterfall at Night)
5. "Em đi trên cỏ non" (You Walk on the Green Grass)
6. "Hát cho người ở lại" (Sing for Those Who Stay)
7. "Nhớ mùa thu Hà Nội" (Remembering Hanoi Autumn)
8. "Tình nồng cháy" (Burning Love)
9. "Chiec la cuoi cung" (The Last Leaf)
10. "Biển nhớ" (Sea of Memories)

These are just a few examples, as Trinh Cong Son has composed numerous beautiful songs throughout his career.