> For the complete documentation index, see [llms.txt](https://chembl.gitbook.io/surechembl/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://chembl.gitbook.io/surechembl/text-search/search-interface-overview.md).

# Search interface overview

When you access the SureChEMBL landing page, the search interface is displayed. It enables you to perform various types of searches.

<figure><img src="https://1396459327-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fty0JOfWwPnEbs5wW271w%2Fuploads%2FtRYeyvX4uJvOMwD1i4Tz%2Fimage.png?alt=media&amp;token=5485fdc3-4d08-4da6-b1d8-437cc6f63878" alt=""><figcaption></figcaption></figure>

| Element                              | Description                                                                                                                                                                                                                                                                                                                        |
| ------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Query field                          | <p>A freestyle search field for performing either a simple text search or a more complex Solr query search.<br><br><strong>Note:</strong> <em>See</em> <a href="/surechembl/text-search/solr-query-field-names-and-examples.md"><em>Solr query fields and examples</em></a> <em>for more details on the Solr query fields</em></p> |
| All chemically annotated authorities | A filter for selecting all or only the relevant chemically annotated patent authorities among US Applications, US Granted, EP Applications, EP Granted, JP, WO, CN                                                                                                                                                                 |
| Patents with small molecules         | An in-house filter based on the work of [Falaguera and Mestres](https://pubs.acs.org/doi/10.1021/acs.jcim.1c00151)                                                                                                                                                                                                                 |
| Specify dates                        | <p>A mechanism for selecting documents based on the publication date.<br><br><strong>Note:</strong> See <a href="/surechembl/text-search/date-filter.md">Date filter</a> for more details on how to restrain the patent search on a time period</p>                                                                                |
| Query assistant                      | <p>An component aiming to support users in writing queries.<br></p><p><strong>Note:</strong> See <a href="/surechembl/text-search/query-assistant.md">Query assistant</a> for more details.</p>                                                                                                                                    |
| Structure search                     | <p>Ketcher, a web-based chemical structure editor.<br><br><strong>Note:</strong> See <a href="/surechembl/chemical-search.md">Chemical search</a> for more details on the search by structure</p>                                                                                                                                  |

***Simple text search***

* Provide the desired search text, and filtering.
* Click on **Search**.\
  The system returns quickly the search results.

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