Open Search suggestion settings.

1. From your Shopify admin, go to Online Store > Themes.

2. Find the theme that you want to edit and click Customize.

3. In the left-hand toolbar, click Theme settings.

4. Click Search suggestion.

General settings

• Enable: turn on/off this feature.

• Limit: adjust the maximum number of items per type (product, article, static page) per page.

Titles

• Popup: add your text to display it as a small title above the search form.

• Products block: add your text to display it as the product tab's title.

• Article block: add your text to display it as the article tab's title.

• Pages block: add your text to display it as the static page tab's title.

Product item settings

Please refer to this guide for more details.