Dvorak keyboards...
The r with a thingy over it doesn't appear to be in the list of HTML entities I can find. Nor indeed the "c" with a... I think it might be called a hacek, but not sure, that is used in Czech words.
č
Háček. Bless you!
ř
ř - That's better.
*installs fly strips on every available surface as everyone but her seems to have flies buzzing around their heads* ;o)
is all I have to say on the matter !