# Page Not Found

The URL `files/qHcNBeP56Gt4cVCbTwHg` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [4.1.1 Quy tắc chung](https://docs.pushsale.vn/huong-dan/telesale/tac-nghiep-telesale/quy-tac-chung.md)
- [139. Cách nhận biết một contact được tạo từ đâu?](https://docs.pushsale.vn/thu-vien-cau-hoi/139.-cach-nhan-biet-mot-contact-duoc-tao-tu-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)
- [9.2 Quản lý notification](https://docs.pushsale.vn/huong-dan/dich-vu-tra-phi/quan-ly-notification.md)
- [Làm thế nào để xoá trùng, lọc trùng?](https://docs.pushsale.vn/cau-hoi-thuong-gap/4.-telesale/lam-the-nao-de-xoa-trung-loc-trung.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/huong-dan/telesale/tac-nghiep-telesale/quy-tac-chung.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., `/huong-dan/telesale/tac-nghiep-telesale/quy-tac-chung.md`).

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