Yet another Vietnamese letter

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9618 5227b50d-9349-4574-b055-4b0a7525e11c
Increase unit test coverage

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9619 5227b50d-9349-4574-b055-4b0a7525e11c