 :Please note that eth (Ð, ð) is distinctly different from the Vietnamese letter đ (Đ, d) in the internal representation (eth: U+00D0, U+00F0, đ: U+0110, U+0111).  Please DO NOT use eth in place of đ.  See D with stroke.  Furthermore, it should be all or nothing; it doesn't make sense to just show some of the diacritics while ignoring the others.  They're all essential.  