Many Vietnamese fan forums and movie sites host the series with custom subtitles. These are great for catching the specific nuances of the Duncan family's humor. Educational Sites:
The reason lay in the character of Teddy Duncan (Bridgit Mendler). Teddy was written as a smart, articulate teenager with a distinct linguistic style. Watching with subtitles allowed Vietnamese youth to learn American slang and idioms directly from the source. Teddy’s sign-off, "Good luck, Charlie," became one of the most recognizable English phrases among Vietnamese teens learning the language. Good Luck Charlie Vietsub