# Page Not Found

The URL `files/ksVtht2w98TcoIuWOfsB` 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)
- [60. Làm thế nào để chỉnh sửa combo](https://docs.pushsale.vn/thu-vien-cau-hoi/60.-lam-the-nao-de-chinh-sua-combo.md)
- [9. Làm thế nào để đối soát đơn?](https://docs.pushsale.vn/thu-vien-cau-hoi/9.-lam-the-nao-de-doi-soat-don.md)
- [11. Tôi bị lỗi số không về từ inbox facebook](https://docs.pushsale.vn/thu-vien-cau-hoi/11.-toi-bi-loi-so-khong-ve-tu-inbox-facebook.md)
- [151. Doanh số và tỉ lệ chốt ở khách mới và khách cũ hôm nay là bao nhiêu?](https://docs.pushsale.vn/thu-vien-cau-hoi/151.-doanh-so-va-ti-le-chot-o-khach-moi-va-khach-cu-hom-nay-la-bao-nhieu.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.