# Page Not Found

The URL `files/P8uHZeUJuHdHNYn8LXpY` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Phương thức thanh toán trên Mentori](https://help.school.mentori.vn/cac-cau-hoi-thuong-gap/phuong-thuc-thanh-toan-tren-mentori.md)
- [Hướng dẫn học tập](https://help.school.mentori.vn/noi-dung-can-ho-tro/huong-dan-hoc-tap.md)
- [Chính sách hoàn tiền](https://help.school.mentori.vn/noi-dung-can-ho-tro/chinh-sach-hoan-tien.md)
- [Cách xem trước khóa học và lựa chọn khóa học phù hợp](https://help.school.mentori.vn/cac-cau-hoi-thuong-gap/cach-xem-truoc-khoa-hoc-va-lua-chon-khoa-hoc-phu-hop.md)
- [Giới thiệu về hình thức học tại Mentori](https://help.school.mentori.vn/noi-dung-can-ho-tro/gioi-thieu-ve-hinh-thuc-hoc-tai-mentori.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.school.mentori.vn/cac-cau-hoi-thuong-gap/phuong-thuc-thanh-toan-tren-mentori.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.school.mentori.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://help.school.mentori.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., `/cac-cau-hoi-thuong-gap/phuong-thuc-thanh-toan-tren-mentori.md`).

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