That's not supported.
Checked for some characters in code search. You can't use the symbol characters except *
and ?
as part of your search query, which including below characters: . , : ; / \ ` ' " @ = ! # $ & + ^ | ~ < > ( ) { } [ ]. The search will simply ignore these symbols.
But you can use wildcard characters * and ? to broaden your search.
You can use wildcard characters anywhere in your search string except
as a prefix in a simple search string or a query that uses a code type
filter. For example, you cannot use a search query such as
*RequestHandler or class:?RequestHandler. However, you can use prefix wildcards with the other search filter functions; for example, the
search query strings file:*RequestHandler.cs and repo:?Handlers are
valid.
Please see Broaden your search with wildcards for details.
If you want to search the strings including these symbol exactly(such as '@' here), you can code search with other strings (eg, testexample.com
here) to narrow down the scope first, then copy the specific code to text editor which support the symbols (eg, Notepad++), then search stings with the symbol characters.
Besides, if you are using Git, another workaround is using the code search tool Hound: a lightning fast code search tool, it supports the symbol characters. Reference this thread to use it: How can I publish source code (Visual Studio) on a intranet?