tohos othos thoos htoos ohtos hotos toohs otohs toohs otohs ooths ooths thoos htoos tohos othos hotos ohtos ohots hoots oohts oohts hoots ohots tohso othso thoso htoso ohtso hotso tosho otsho tsoho stoho ostho sotho thsoo htsoo tshoo sthoo hstoo shtoo ohsto hosto oshto sohto hsoto shoto toosh otosh toosh otosh ootsh ootsh tosoh otsoh tsooh stooh ostoh sotoh tosoh otsoh tsooh stooh ostoh sotoh oosth oosth osoth sooth osoth sooth thoso htoso tohso othso hotso ohtso thsoo htsoo tshoo sthoo hstoo shtoo tosho otsho tsoho stoho ostho sotho hosto ohsto hsoto shoto oshto sohto ohost hoost oohst oohst hoost ohost ohsot hosot oshot sohot hsoot shoot oosht oosht osoht sooht osoht sooht hosot ohsot hsoot shoot oshot sohot
Note: these 'words' (valid or invalid) are all the permutations of the word tohos. These words are obtained by scrambling the letters in tohos.