The shortcode will not work on the post title (a wordpress limitation), your best bet is to change the template code and wrap titles in no_translate. you can also insert said spans into titles by manually manipulating the database.
shortcode si kazi juu ya kichwa cha habari (WordPress ya kiwango cha juu), bet wako bora ni mabadiliko ya template na vyeo code wrap katika no_translate. unaweza pia kuingiza spans alisema katika vyeo kwa manually manipulating database.