Her entry "In the Storm" was honoured in the Bring Home the Harvest category. Images entered in the category depict parts of the process of harvesting and gathering crops.
The results were recently announced, with Khanh being the only Vietnamese photographer to win a prize this year.
Pink Lady photo contest was first launched back in 2011 and is open to both professional and non-professional photographers worldwide.
Since 2011, over 80,000 images and films have been submitted from 96 countries.
Source: VOV