Here's a breakdown of the words:
* Hanggang - until
* sa - to, in
* muli - again
This phrase literally translates to "until again", and it's a very common and polite way to say goodbye in Tagalog.
Here are some other possible translations depending on the context:
* Sa susunod - See you next time
* Makita ka ulit - See you again
* Magkita ulit tayo - Let's meet again
The best translation will depend on the specific situation and your relationship with the person you are talking to.