You can find the full Khmer-dubbed feature across several platforms: TVB Cambodia Drama (YouTube):
Directed by Zhang Jianya, the 66-episode series follows the legendary pilgrimage of the Tang dynasty monk (Xuanzang) as he travels to the "Western Regions" to retrieve sacred Buddhist scriptures. Along the way, he is protected by: journey to the west 2011 speak khmer
Main characters
It includes many chapters and minor characters that were skipped in previous versions, making it an "educational" retelling. You can find the full Khmer-dubbed feature across