Use `chinse-two-byte' instead of `chinese' in regex

When use `chinese' in regex, it may also include some non-chinese chars
like `á', use `chinse-two-byte' to prevent this error.

Note: We use `chinse-two-byte' instead of `chinese-two-byte', since
there are some typo in emacs version 21.1-24.3. For more information,
see:
  [Emacs-diffs] trunk r115873: Fix misspelling of 'chinese' in rx.

url: http://lists.gnu.org/archive/html/emacs-diffs/2014-01/msg00049.html

Signed-off-by: coldnew <coldnew.tw@gmail.com>