Enable auto-suggestion, product attributes that customers can use to search
Provides the capability that lets users quickly and effectively search the content or product catalogs in a store.
In the theme editor (Customize), click Theme settings
Locate Store contact
Make necessary changes
You can enable one or all of the following features for search.
Enable predictive search: a feature that predicts what users are searching for and shows results as users type.
Search using product's tags
Search using product's description
You can set some predefined popular search queriesto suggest the search result and choose how out-of-stock products show (hide/show at last).
The default fields searched on are 'title', 'product_type', 'variants.title', and 'vendor'. For the best search experience, users should search on the default field set, or as fewer fields as possible.