If your language uses special characters such as á, é, ã, ç, ü, and etc, you can type it normally, but always save it as UTF-8 code. So, you can edit them into the notepad.exe (Windows) and when "saving as" you need to select the UTF-8 code. If you select SAVE, sometimes it can save the file as ANSI code or other and will mess the stuffs.