# Page Not Found

The URL `files/UCtQkNyq7dDHYIoUGaga` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [18. Làm thế nào để thu hồi số của sale?](https://docs.pushsale.vn/thu-vien-cau-hoi/18.-lam-the-nao-de-thu-hoi-so-cua-sale.md)
- [13. Chốt đơn không tính được phí COD là do đâu?](https://docs.pushsale.vn/thu-vien-cau-hoi/13.-chot-don-khong-tinh-duoc-phi-cod-la-do-dau.md)
- [64. Cài đặt phương thức giao hàng mặc định](https://docs.pushsale.vn/thu-vien-cau-hoi/64.-cai-dat-phuong-thuc-giao-hang-mac-dinh.md)
- [33. Quy trình nạp cước tổng đài](https://docs.pushsale.vn/thu-vien-cau-hoi/33.-quy-trinh-nap-cuoc-tong-dai.md)
- [26. Cập nhật trạng thái đơn hàng khi giao hàng một phần](https://docs.pushsale.vn/thu-vien-cau-hoi/26.-cap-nhat-trang-thai-don-hang-khi-giao-hang-mot-phan.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://docs.pushsale.vn/thu-vien-cau-hoi/18.-lam-the-nao-de-thu-hoi-so-cua-sale.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://docs.pushsale.vn/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.pushsale.vn/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/thu-vien-cau-hoi/18.-lam-the-nao-de-thu-hoi-so-cua-sale.md`).

You may also use `Accept: text/markdown` header for content negotiation.