How to use the use_search parameter in the WebApp include tag, along with a keyword parameter in the URL, to search for items.
This is the easiest way to allow users to search for WebApp items on the Front End. You can use a string of words to search all fields in the WebApp. Using OR logic, Siteglide will return all results where at least one keyword matches in one of the item's fields. The number of results will still be limited by pagination. If you want to control which fields are searched, see Searching - Advanced Filtering.
Since you have added the use_search parameter to the Liquid, Siteglide is now checking the URL for the keyword parameter. It will use this parameter's value to search all your WebApp's fields and return all items where at least one of keyword's words matches at least one word in the WebApp's fields. With your site open in your browser, add the parameter to the URL to test this. Remember the example keyword is unlikely to be found in your unique WebApp, so choose something you know is there! You should see your WebApp's results adjust as only items which match are returned:
You can now build an input form to pass the user's chosen keywords as parameters to the URL.