nishes inshes nsihes snihes isnhes sinhes nihses inhses nhises hnises ihnses hinses nshies snhies nhsies hnsies shnies hsnies ishnes sihnes ihsnes hisnes shines hsines nisehs insehs nsiehs sniehs isnehs sinehs nieshs ineshs neishs enishs ienshs einshs nseihs sneihs nesihs ensihs senihs esnihs isenhs sienhs iesnhs eisnhs seinhs esinhs nihess inhess nhiess hniess ihness hiness niehss inehss neihss enihss ienhss einhss nheiss hneiss nehiss enhiss heniss ehniss ihenss hienss iehnss eihnss heinss ehinss nsheis snheis nhseis hnseis shneis hsneis nsehis snehis neshis enshis senhis esnhis nhesis hnesis nehsis enhsis hensis ehnsis shenis hsenis sehnis eshnis hesnis ehsnis ishens sihens ihsens hisens shiens hsiens isehns siehns ieshns eishns seihns esihns ihesns hiesns iehsns eihsns heisns ehisns sheins hseins sehins eshins hesins ehsins nishse inshse nsihse snihse isnhse sinhse nihsse inhsse nhisse hnisse ihnsse hinsse nshise snhise nhsise hnsise shnise hsnise ishnse sihnse ihsnse hisnse shinse hsinse nisshe insshe nsishe snishe isnshe sinshe nisshe insshe nsishe snishe isnshe sinshe nssihe snsihe nssihe snsihe ssnihe ssnihe issnhe sisnhe issnhe sisnhe ssinhe ssinhe nihsse inhsse nhisse hnisse ihnsse hinsse nishse inshse nsihse snihse isnhse sinhse nhsise hnsise nshise snhise hsnise shnise ihsnse hisnse ishnse sihnse hsinse shinse nshsie snhsie nhssie hnssie shnsie hsnsie nsshie snshie nsshie snshie ssnhie ssnhie nhssie hnssie nshsie snhsie hsnsie shnsie shsnie hssnie sshnie sshnie hssnie shsnie ishsne sihsne ihssne hissne shisne hsisne isshne sishne isshne sishne ssihne ssihne ihssne hissne ishsne sihsne hsisne shisne shsine hssine sshine sshine hssine shsine nisesh insesh nsiesh sniesh isnesh sinesh niessh inessh neissh enissh ienssh einssh nseish sneish nesish ensish senish esnish isensh siensh iesnsh eisnsh seinsh esinsh nisseh insseh nsiseh sniseh isnseh sinseh nisseh insseh nsiseh sniseh isnseh sinseh nssieh snsieh nssieh snsieh ssnieh ssnieh issneh sisneh issneh sisneh ssineh ssineh niessh inessh neissh enissh ienssh einssh nisesh insesh nsiesh sniesh isnesh sinesh nesish ensish nseish sneish esnish senish iesnsh eisnsh isensh siensh esinsh seinsh nsesih snesih nessih enssih sensih esnsih nsseih snseih nsseih snseih ssneih ssneih nessih enssih nsesih snesih esnsih sensih sesnih essnih ssenih ssenih essnih sesnih isesnh siesnh iessnh eissnh seisnh esisnh issenh sisenh issenh sisenh ssienh ssienh iessnh eissnh isesnh siesnh esisnh seisnh sesinh essinh sseinh sseinh essinh sesinh nihess inhess nhiess hniess ihness hiness niehss inehss neihss enihss ienhss einhss nheiss hneiss nehiss enhiss heniss ehniss ihenss hienss iehnss eihnss heinss ehinss nihses inhses nhises hnises ihnses hinses nishes inshes nsihes snihes isnhes sinhes nhsies hnsies nshies snhies hsnies shnies ihsnes hisnes ishnes sihnes hsines shines nieshs ineshs neishs enishs ienshs einshs nisehs insehs nsiehs sniehs isnehs sinehs nesihs ensihs nseihs sneihs esnihs senihs iesnhs eisnhs isenhs sienhs esinhs seinhs nhesis hnesis nehsis enhsis hensis ehnsis nhseis hnseis nsheis snheis hsneis shneis neshis enshis nsehis snehis esnhis senhis hesnis ehsnis hsenis shenis eshnis sehnis ihesns hiesns iehsns eihsns heisns ehisns ihsens hisens ishens sihens hsiens shiens ieshns eishns isehns siehns esihns seihns hesins ehsins hseins sheins eshins sehins nshesi snhesi nhsesi hnsesi shnesi hsnesi nsehsi snehsi neshsi enshsi senhsi esnhsi nhessi hnessi nehssi enhssi henssi ehnssi shensi hsensi sehnsi eshnsi hesnsi ehsnsi nshsei snhsei nhssei hnssei shnsei hsnsei nsshei snshei nsshei snshei ssnhei ssnhei nhssei hnssei nshsei snhsei hsnsei shnsei shsnei hssnei sshnei sshnei hssnei shsnei nseshi sneshi nesshi ensshi senshi esnshi nssehi snsehi nssehi snsehi ssnehi ssnehi nesshi ensshi nseshi sneshi esnshi senshi sesnhi essnhi ssenhi ssenhi essnhi sesnhi nhessi hnessi nehssi enhssi henssi ehnssi nhsesi hnsesi nshesi snhesi hsnesi shnesi neshsi enshsi nsehsi snehsi esnhsi senhsi hesnsi ehsnsi hsensi shensi eshnsi sehnsi shesni hsesni sehsni eshsni hessni ehssni shseni hsseni ssheni ssheni hsseni shseni seshni esshni ssehni ssehni esshni seshni hessni ehssni hsesni shesni eshsni sehsni ishesn sihesn ihsesn hisesn shiesn hsiesn isehsn siehsn ieshsn eishsn seihsn esihsn ihessn hiessn iehssn eihssn heissn ehissn sheisn hseisn sehisn eshisn hesisn ehsisn ishsen sihsen ihssen hissen shisen hsisen isshen sishen isshen sishen ssihen ssihen ihssen hissen ishsen sihsen hsisen shisen shsien hssien sshien sshien hssien shsien iseshn sieshn iesshn eisshn seishn esishn issehn sisehn issehn sisehn ssiehn ssiehn iesshn eisshn iseshn sieshn esishn seishn sesihn essihn sseihn sseihn essihn sesihn ihessn hiessn iehssn eihssn heissn ehissn ihsesn hisesn ishesn sihesn hsiesn shiesn ieshsn eishsn isehsn siehsn esihsn seihsn hesisn ehsisn hseisn sheisn eshisn sehisn shesin hsesin sehsin eshsin hessin ehssin shsein hssein sshein sshein hssein shsein seshin esshin ssehin ssehin esshin seshin hessin ehssin hsesin shesin eshsin sehsin
Note: these 'words' (valid or invalid) are all the permutations of the word nishes. These words are obtained by scrambling the letters in nishes.