How to search only non html content

My table column looks like this

<td colspan="2" class="name">
                     <a href="/admin/edit/1">Mathematics</a>
			<div class="form-hover-links">
				<a class="iframe" id="" href="/admin/edit/1">
					Edit
				</a>
				<span class="dlfs-fl">|</span>
				<a class="delete-iframe" id="" href="/admin/delete/1">
					Delete
				</a>
			</div>
		</td>	

When i search for edit or delete, it matches the above column. I want the search filter to only search for "Mathematics" (ie ignore the entire <div> tag and look for only contents that are within <a> tag that has "Mathematics".