>So far, I have no problem searching with Code Reference except for this case. As I have mentioned, for the same string being searched, once the scx or vcx file is renamed, the search is done correctly... so it is not a pure searching problem, I feel like something else is blocking the search in those files, I just can't be sure what is that?

When you have the Code Reference form open for searching, VFP knows that the form is open and the file name associated to the form. Now when you try to search the contents of the SCX with the same name as the Code References form, instead of opening the file on the file system to search, instead VFP tries to USE the one that is in memory.

So in short, you cannot search a form with the same name as the Code References form. This also applies to any of the supporting objects (such as visual classes) that are opened for the displayed form.

I had this problem when I developed an editor for VFP -- I could not use the editor to edit itself.