Search box in Filter lets you look for # or @
But if fails when you try to search for * or ~ or ?
Using the Search box in Filter, you want to find an asterisk *
Using the Search box in Filter, you want to find a tilde ~
Using the Search box in Filter, you want to find a ?
Excel returns everything for the * and nothing for ? ~
To search for an asterisk, search for ~*
To search for a tilde, search for ~~
To search for question mark, search for ~?
To search for ~?*, search for ~~~?~*
In the Find/Replace dialog, use ~~, ~*, ~? In the Find box, but not Replace
When using VLOOKUP or MATCH, use ~~ ~* or ~?
Addendum: How to use * and ? wildcards in Excel