UTF 8 character search issue.

Visit http://www.jahkenkenrecords.com/labels03.php?id=8377
You will see some ° there. Try to search for them. It returns nothing.
Why?

BuiltWith recognises an HTML5 document, generated by PHP in UTF-8 encoding.
https://builtwith.com/?http%3a%2f%2fwww.jahkenkenrecords.com%2flabels03.php%3fid%3d8377

It looks like what you want is the "degree" character.  There is a character entity that I would use for this.  It's °

The A-circumflex you're seeing is a UTF-8 character prefix for the degree character, when the degree is used explicitly, and not presented in the character entity.  The degree character looks like this, in ASCII:  °

This is all explained in the article about Unicode.

This line appears to have the wrong information:

<div class="jkrtable-cell"><a class="link-release" href="releases03.php?id=6590421">96° In The Shade</a></div>

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And this line appears to have it right, so I would use whatever is generating this line and follow that guidance for the other lines.

<div class="jkrtable-cell"><a class="link-release" href="releases03.php?id=2422814">96º In The Shade / Prisoner In The Street</a></div>

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Character set oddities can be challenging to figure out.

Best to step through each layer of your code logically.

Start with your storage engine + charset for fields, depending on how you've setup your Schema.

Then debug your page by pulling your page content with curl + verify returned content is correct outside a browser environment.

Then check inside your browser.

abandoned question, accepting the working answers