# Page Not Found

The URL `huong-dan/3.-khach-hang-360/3.1-quan-ly-khach-hang/broken-reference` does not exist.

You might be looking for one of these pages:
- [3.1 Quản lý khách hàng](https://docs.pushsale.vn/huong-dan/3.-khach-hang-360/3.1-quan-ly-khach-hang.md)
- [Lịch sử](https://docs.pushsale.vn/huong-dan/3.-khach-hang-360/3.1-quan-ly-khach-hang/lich-su.md)
- [Thêm khách hàng vào chiến dịch](https://docs.pushsale.vn/huong-dan/3.-khach-hang-360/3.1-quan-ly-khach-hang/them-khach-hang-vao-chien-dich.md)
- [Lọc thông tin khách hàng](https://docs.pushsale.vn/huong-dan/3.-khach-hang-360/3.1-quan-ly-khach-hang/loc-thong-tin-khach-hang.md)
- [Danh sách đơn hàng của khách](https://docs.pushsale.vn/huong-dan/3.-khach-hang-360/3.1-quan-ly-khach-hang/danh-sach-don-hang.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.pushsale.vn/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.pushsale.vn/llms-full.txt) - Full content export

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- For markdown responses, append `.md` to URLs (e.g., `/huong-dan/3.-khach-hang-360/3.1-quan-ly-khach-hang.md`)
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