However, search results suggest a few possibilities for what you might be looking for: 1. Vietnamese Literary Analysis (Most Likely)
Are you analyzing Vietnamese classical poetry ? Are you discussing industrial manufacturing ?
Is "XNN" perhaps a typo for (Convolutional Neural Networks) applied to Thai language processing?
Research exists regarding the using methods like Phonics. If "XNN" is a specific dataset or study code, your paper would likely explore literacy development and bilingual education in integrated Thai-migrant classrooms.
There is a Vietnamese educational source referencing "THAI-XNN" in the context of a literary analysis of the poem by Phạm Ngũ Lão.