Here is a string that I wan to find

"some string some other one blah bla \"hello world \" "

also should match
"some string some other one
blah bla \"hello world \" "

also
""

in conclusion I wantto detect all string which can be multiple lines also have

\"

inside of that string.

I tried many combinations of regular rules. but could not achieve to build this rule up.

any help appricated.

thanks.

okay I built it up : 

The issue likely is that inside your code a \" inside a string quoted with " appears to the regex operation as just a ".

If this is in code show the code.