oches cohes ohces hoces choes hcoes ocehs coehs oechs eochs ceohs ecohs ohecs hoecs oehcs eohcs heocs ehocs cheos hceos cehos echos hecos ehcos ochse cohse ohcse hocse chose hcose ocshe coshe osche soche csohe scohe ohsce hosce oshce sohce hsoce shoce chsoe hcsoe cshoe schoe hscoe shcoe ocesh coesh oecsh eocsh ceosh ecosh ocseh coseh osceh soceh csoeh scoeh oesch eosch osech soech esoch seoch cesoh ecsoh cseoh sceoh escoh secoh ohesc hoesc oehsc eohsc heosc ehosc ohsec hosec oshec sohec hsoec shoec oeshc eoshc osehc soehc esohc seohc hesoc ehsoc hseoc sheoc eshoc sehoc cheso hceso cehso echso hecso ehcso chseo hcseo csheo scheo hsceo shceo cesho ecsho cseho sceho escho secho hesco ehsco hseco sheco eshco sehco
Note: these 'words' (valid or invalid) are all the permutations of the word oches. These words are obtained by scrambling the letters in oches.