Hey,
So if you're using App Search and Search UI, this code below should be similar for SearchBox:
<SearchBox
autocompleteMinimumCharacters={3}
autocompleteResults={{
linkTarget: "_blank",
sectionTitle: "Results",
titleField: "contactInformation", // the field just to present the result
urlField: "nps_link",
shouldTrackClickThrough: true,
clickThroughTags: ["test"]
}}
autocompleteSuggestions={true}
debounceLength={0}
/>
Now see the titleField property, thats the field you specify to display the result. In this example its title but you could create a new field (for example contactInformation) which contains "[Name] [Address] [Phone no]". That field contents will be present when matches in the autocomplete results are shown.
Hope this helps.