If it's anything like where I live, most of the bungalows that started off as 2 /3 beds have been enlarged both sideways and upwards so are now 2 storey.
I asked a local builder why they only seem to build single storey houses in places designed for the elderly and was told it's because they are not fashionable!
A friend of mine has been diagnosed with MS was looking for a bungalow for 6 months before she found her bungalow and only then because it had previously been her work colleague's grandmother's and purely by chance she heard about it going on the market during a chat in the office tea room !
Hang in there, register with all the local estate agents and you could always try posting on your local community Facebook group,
What Would You Do in this Position?