dacha adcha dcaha cdaha acdha cadha dahca adhca dhaca hdaca ahdca hadca dchaa cdhaa dhcaa hdcaa chdaa hcdaa achda cahda ahcda hacda chada hcada dacah adcah dcaah cdaah acdah cadah daach adach daach adach aadch aadch dcaah cdaah dacah adcah cadah acdah acadh caadh aacdh aacdh caadh acadh dahac adhac dhaac hdaac ahdac hadac daahc adahc daahc adahc aadhc aadhc dhaac hdaac dahac adhac hadac ahdac ahadc haadc aahdc aahdc haadc ahadc dchaa cdhaa dhcaa hdcaa chdaa hcdaa dcaha cdaha dacha adcha cadha acdha dhaca hdaca dahca adhca hadca ahdca chada hcada cahda achda hacda ahcda achad cahad ahcad hacad chaad hcaad acahd caahd aachd aachd caahd acahd ahacd haacd aahcd aahcd haacd ahacd chaad hcaad cahad achad hacad ahcad
Note: these 'words' (valid or invalid) are all the permutations of the word dacha. These words are obtained by scrambling the letters in dacha.