Here are some examples of how it can be used:
* "I lost my job, but se la vie, I'll find another one." (This implies that the person is disappointed but ultimately accepting of the situation.)
* "My car broke down on the way to the airport. Se la vie, I'll just take a taxi." (The person is acknowledging that the situation is inconvenient but ultimately moving on.)
"Se la vie" is a relatively informal expression, and you might not hear it used in very formal settings.