# Search

Snowray also provides an advanced search option, which can be invoked by pressing the![](https://2151851347-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNmYDYy59u4utCYtlZ8vF%2Fuploads%2FOrRjpHpxFjFRneqLQ1X2%2Fadvanced_search_icon.png?alt=media)advanced filter icon in the search bar. This enables users to specify additional criteria to restrict their searches.

![Advanced Search Filter](https://2151851347-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNmYDYy59u4utCYtlZ8vF%2Fuploads%2F1YOirq7YEo6BV3gfFRxw%2Fadvanced_filter_search.png?alt=media)

| **Field**             | **Description**                                               |
| --------------------- | ------------------------------------------------------------- |
| **Status**            | Filter for active or inactive concepts                        |
| **Module**            | Return concepts that are associated with the selected module  |
| **Namespace**         | Filter for concepts within the selected namespace             |
| **Ancestor**          | Return all child concepts of the selected concept             |
| **Active member of**  | Filter for concepts that are present in the selected resource |
| **Definition status** | Return either *defined* or *primitive* concepts only          |
| **Effective time**    | Search concepts by their release date                         |

{% hint style="info" %}
Active members of a resource will only be detected correctly after the resource is synchronized, i.e. it is either released or exported to RF2.
{% endhint %}