Which Vietnamese words are harmful when read forwards and beneficial when read backwards?

This is a riddle that will surely stump many people, how about you?

This is also a challenge for language lovers and those who enjoy discovering interesting things hidden behind words. The riddle is as follows: "Which Vietnamese word is harmful when read forwards and beneficial when read backwards?"

Which Vietnamese words are harmful when read forwards and beneficial when read backwards?

If you find the answer in the shortest time, scroll down to the comments to record it and see how many people think the same way as you.

Khanh Son

Source: https://vtcnews.vn/tu-tieng-viet-nao-doc-xuoi-co-hai-doc-nguoc-co-loi-ar972867.html