Search with special character issue (i.e search with ! followed by any character)

[Sanjay-tops]

Hello,
There is one issue with search. If we search first character as ! and followed by any other character then search is not performing and it returns all the value. Here problem is that when we search with ! it treat as 'not' (i.e. if search !A then it treat as option which not contains a or A is filtered.)
But I need this !A as single search word not like above

Does any one have solution for this?