template - <span class="comment">search_resultlist
Change this line to what you want:
HTML Code:
<title>{vb:rawphrase search_results} - {vb:raw vboptions.bbtitle}</title>
If this is only for the tags page, then perhaps something like:
HTML Code:
<title><vb:if condition="THIS_SCRIPT == 'tags'">dien dan svbk<vb:else />{vb:rawphrase search_results}</vb:if> - {vb:raw vboptions.bbtitle}</title>