please support Vietnamese ^^
here is code for replace ^^
thanks
'à'=>'a','á'=>'a','ả'=>'a','ã'=>'a','ạ'=>'a',
'ă'=>'a','ằ'=>'a','ắ'=>'a','ẳ'=>'a','ẵ'=>'a','ặ'=>'a',
'â'=>'a','ầ'=>'a','ấ'=>'a','ẩ'=>'a','ẫ'=>'a','ậ'=>'a',
'À'=>'a','Á'=>'a','Ả'=>'a','Ã'=>'a','Ạ'=>'a',
'Ă'=>'a','Ằ'=>'a','Ắ'=>'a','Ẳ'=>'a','Ẵ'=>'a','Ặ'=>'a',
'Â'=>'a','Ầ'=>'a','Ấ'=>'a','Ẩ'=>'a','Ẫ'=>'a','Ậ'=>'a',
'đ'=>'d','Đ'=>'d',
'è'=>'e','é'=>'e','ẻ'=>'e','ẽ'=>'e','ẹ'=>'e',
'ê'=>'e','ề'=>'e','ế'=>'e','ể'=>'e','ễ'=>'e','ệ'=>'e',
'È'=>'e','É'=>'e','Ẻ'=>'e','Ẽ'=>'e','Ẹ'=>'e',
'Ê'=>'e','Ề'=>'e','Ế'=>'e','Ể'=>'e','Ễ'=>'e','Ệ'=>'e',
'ì'=>'i','í'=>'i','ỉ'=>'i','ĩ'=>'i','ị'=>'i',
'Ì'=>'i','Í'=>'i','Ỉ'=>'i','Ĩ'=>'i','Ị'=>'i',
'ò'=>'o','ó'=>'o','ỏ'=>'o','õ'=>'o','ọ'=>'o',
'ô'=>'o','ồ'=>'o','ố'=>'o','ổ'=>'o','ỗ'=>'o','ộ'=>'o',
'ơ'=>'o','ờ'=>'o','ớ'=>'o','ở'=>'o','ỡ'=>'o','ợ'=>'o',
'Ò'=>'o','Ó'=>'o','Ỏ'=>'o','Õ'=>'o','Ọ'=>'o',
'Ô'=>'o','Ồ'=>'o','Ố'=>'o','Ổ'=>'o','Ỗ'=>'o','Ộ'=>'o',
'Ơ'=>'o','Ờ'=>'o','Ớ'=>'o','Ở'=>'o','Ỡ'=>'o','Ợ'=>'o',
'ù'=>'u','ú'=>'u','ủ'=>'u','ũ'=>'u','ụ'=>'u',
'ư'=>'u','ừ'=>'u','ứ'=>'u','ử'=>'u','ữ'=>'u','ự'=>'u',
'Ù'=>'u','Ú'=>'u','Ủ'=>'u','Ũ'=>'u','Ụ'=>'u',
'Ư'=>'u','Ừ'=>'u','Ứ'=>'u','Ử'=>'u','Ữ'=>'u','Ự'=>'u',
'ỳ'=>'y','ý'=>'y','ỷ'=>'y','ỹ'=>'y','ỵ'=>'y',
'Y'=>'y','Ỳ'=>'y','Ý'=>'y','Ỷ'=>'y','Ỹ'=>'y','Ỵ'=>'y'
'a' => array ('a', 'A', 'à', 'À', 'á', 'Á', 'â', 'Â', 'ã', 'Ã', 'ä', 'Ä', 'å', 'Å', 'ª', 'ą', 'Ą', 'а', 'А', 'ạ', 'Ạ', 'ả', 'Ả', 'Ầ', 'ầ', 'Ấ', 'ấ', 'Ậ', 'ậ', 'Ẩ', 'ẩ', 'Ẫ', 'ẫ', 'Ă', 'ă', 'Ắ', 'ắ', 'Ẵ', 'ẵ', 'Ặ', 'ặ', 'Ằ', 'ằ', 'Ẳ', 'ẳ'),
'ae' => array ('æ', 'Æ'),
'b' => array ('b', 'B'),
'c' => array ('c', 'C', 'ç', 'Ç', 'ć', 'Ć', 'č', 'Č'),
'd' => array ('d', 'D', 'Ð', 'đ', 'Đ', 'ď', 'Ď'),
'e' => array ('e', 'E', 'è', 'È', 'é', 'É', 'ê', 'Ê', 'ë', 'Ë', 'ę', 'Ę', 'е', 'Е', 'ё', 'Ё', 'э', 'Э', 'Ẹ', 'ẹ', 'Ẻ', 'ẻ', 'Ẽ', 'ẽ', 'Ề', 'ề', 'Ế', 'ế', 'Ệ', 'ệ', 'Ể', 'ể', 'Ễ', 'ễ', 'ε', 'Ε', 'ě', 'Ě'),
'f' => array ('f', 'F'),
'g' => array ('g', 'G', 'ğ', 'Ğ'),
'h' => array ('h', 'H'),
'i' => array ('i', 'I', 'ì', 'Ì', 'í', 'Í', 'î', 'Î', 'ï', 'Ï', 'ı', 'İ', 'Ị', 'ị', 'Ỉ', 'ỉ', 'Ĩ', 'ĩ', 'Ι', 'ι'),
'j' => array ('j', 'J'),
'k' => array ('k', 'K', 'к', 'К', 'κ', 'Κ'),
'l' => array ('l', 'L', 'ł', 'Ł'),
'm' => array ('m', 'M', 'м', 'М', 'Μ'),
'n' => array ('n', 'N', 'ñ', 'Ñ', 'ń', 'Ń', 'ň', 'Ň'),
'o' => array ('o', 'O', 'ò', 'Ò', 'ó', 'Ó', 'ô', 'Ô', 'õ', 'Õ', 'ö', 'Ö', 'ø', 'Ø', 'º', 'о', 'О', 'Ọ', 'ọ', 'Ỏ', 'ỏ', 'Ộ', 'ộ', 'Ố', 'ố', 'Ỗ', 'ỗ', 'Ồ', 'ồ', 'Ổ', 'ổ', 'Ơ', 'ơ', 'Ờ', 'ờ', 'Ớ', 'ớ', 'Ợ', 'ợ', 'Ở', 'ở', 'Ỡ', 'ỡ', 'ο', 'Ο'),
'p' => array ('p', 'P'),
'q' => array ('q', 'Q'),
'r' => array ('r', 'R', 'ř', 'Ř'),
's' => array ('s', 'S', 'ş', 'Ş', 'ś', 'Ś', 'š', 'Š'),
'ss' => array ('ß'),
't' => array ('t', 'T', 'т', 'Т', 'τ', 'Τ', 'ţ', 'Ţ', 'ť', 'Ť'),
'u' => array ('u', 'U', 'ù', 'Ù', 'ú', 'Ú', 'û', 'Û', 'ü', 'Ü', 'Ụ', 'ụ', 'Ủ', 'ủ', 'Ũ', 'ũ', 'Ư', 'ư', 'Ừ', 'ừ', 'Ứ', 'ứ', 'Ự', 'ự', 'Ử', 'ử', 'Ữ', 'ữ', 'ů', 'Ů'),
'v' => array ('v', 'V'),
'w' => array ('w', 'W'),
'x' => array ('x', 'X', '×'),
'y' => array ('y', 'Y', 'ý', 'Ý', 'ÿ', 'Ỳ', 'ỳ', 'Ỵ', 'ỵ', 'Ỷ', 'ỷ', 'Ỹ', 'ỹ'),
'z' => array ('z', 'Z', 'ż', 'Ż', 'ź', 'Ź', 'ž', 'Ž', 'Ζ'),
'-' => array ('-', ' ', '.', ','),
'_' => array ('_'),
'!' => array ('!'),
'~' => array ('~'),
'*' => array ('*'),
"\x12" => array ("'", '"'),
'(' => array ('(', '{', '['),
')' => array (')', '}', ']'),
'$' => array ('$'),
'0' => array ('0'),
'1' => array ('1', '¹'),
'2' => array ('2', '²'),
'3' => array ('3', '³'),
'4' => array ('4'),
'5' => array ('5'),
'6' => array ('6'),
'7' => array ('7'),
'8' => array ('8'),
'9' => array ('9'),