like: thoang thoảng mùi
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BEGINNER LEVEL
exact:
VNEN 
thoang thoảng mùi * ☊ 
to have a faint smell, odor * ☊
[ thoảng ] : in a hint, a whiff of, slightly
[ mùi ] : (1) smell, scent, odor, color; (2) eighth year of the Chinese zodiac (“goat” or “sheep”)
[ mùi ] : smell