If you cannot find a specific Serbian file that fits your version, Bosnian or Croatian subtitles are typically over 99% identical and will be perfectly understandable.

On major streaming platforms like Netflix , subtitles are professionally translated, which typically ensures better quality than amateur "fansubs," though minor localization compromises may occur. Community Perspectives

Always look for files with the highest download counts and positive user ratings to ensure the timing matches your video file.