If the sample text is unable to be changed, I suggest creating a snippet for just '< strong >' and then another snippet for just '< /strong >' and then typing the shortcuts to insert them quickly around the text.
Otherwise, you could potentially use the {clipboard} command to do it. Maybe something like the snippet below. In this case, you would copy the sample text and it would be added to your code without being changed.
< h3 >< strong >{clipboard}< /strong >< /h3 >
Please give those options a try and let me know if they work for you. Feel free to email us at support@blaze.today if you have any questions.