# Page Not Found

The URL `files/sKxxrlGTOq4fSWtmifMo` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [11.4. Trung tâm trợ giúp](https://help.ant-center.com/11.-thiet-lap/11.4.-trung-tam-tro-giup.md)
- [2.1. Thêm công việc trong danh sách liên hệ](https://help.ant-center.com/2.-quy-trinh-tuyen-sinh/2.1.-them-cong-viec-trong-danh-sach-lien-he.md)
- [11.1. Thông tin trung tâm](https://help.ant-center.com/11.-thiet-lap/11.1.-thong-tin-trung-tam.md)
- [11.3. Thiết lập khuyến mãi](https://help.ant-center.com/11.-thiet-lap/11.3.-thiet-lap-khuyen-mai.md)
- [11.2. Thiết lập gói học phí](https://help.ant-center.com/11.-thiet-lap/11.2.-thiet-lap-goi-hoc-phi.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://help.ant-center.com/11.-thiet-lap/11.4.-trung-tam-tro-giup.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://help.ant-center.com/sitemap.md

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

### Option 3 — Retrieve the full documentation corpus

Full export: https://help.ant-center.com/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., `/11.-thiet-lap/11.4.-trung-tam-tro-giup.md`).

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