# Search

Configuration of the full-text search system (Xapian).

Access these settings under **Administration > Configuration settings > Search**. This category contains **3 settings**, listed below with the title and comment shipped in the platform's settings fixtures (`SettingsCurrentFixtures.php`).

> The variable name in code is shown in monospace. Use it when scripting via the API or when you need to change those settings at a global level by editing [`config/settings_override.yaml`](https://github.com/chamilo/chamilo-lms/wiki/Configurations#configsettings_overridesyaml).

## Settings

### `search_enabled`

**Full-text search feature**

Select 'Yes' to enable this feature. It is highly dependent on the Xapian extension for PHP, so this will not work if this extension is not installed on your server, in version 1.x at minimum.

*Default: `false`*

### `search_prefilter_prefix`

**Specific Field for prefilter**

This option let you choose the Specific field to use on prefilter search type.

### `search_show_unlinked_results`

**Full-text search: show unlinked results**

When showing the results of a full-text search, what should be done with the results that are not accessible to the current user?

*Default: `true`*


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.chamilo.org/administration-guide/admin-guide/platform-settings/search-settings.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.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.