Depending on the typing input language that you're using, some shortcuts might not be available.
Tips and shortcuts
Search for an item on your BlackBerry smartphone
Start typing on the home screen.
Search for text in a message
Search for text in a file or an attachment
Search for text on a webpage
Search for text in a presentation
Note: You can change what happens when you type on the home screen.
To search for text in a presentation, you must view the presentation in text view or in text and slide view.
Change what happens when you type on the Home screen,
Turn on browser shortcuts,