្ដ(្dâ) from ដ(dɑɑ) (ដ្ដ(ddɑɑ)) is homographic to ្ត(្tâ) from ត(tɑɑ) (ត្ត(ttɑɑ)), and is the cause of a great many misspellings. Many Cambodians do not distinguish between the two subscripts, and type either of them for both subscript letters. They consider that a single glyph does duty for both letters.
