I wanted to easily locate all setter methods for String members in my project.
So I used the following RE to find them:

public void set([a-zA-Z0-9]*)\(String ([a-zA-Z0-9]*)\) \{\s*(this\.[a-zA-Z0-9]*
= [a-zA-Z0-9]*;)\s*\}

the idea was to match methods of the form:

public void setXXX(String xxx) {
    this.xxx = xxx;
}

Using a regular Find (Ctrl+F), the RE above matches the desired methods just
fine. But if I used Find in Projects (Ctrl+Shift+P), no matches are found.

Sorry I haven't had time to narrow the problem down, but this is the actual
example I'm working on.