Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'health', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
health
Transposition0
ehalth
haelth
helath
heatlh
healht
Transposition1
aehlth
hlaeth
hetlah
heahtl
Transposition2
leahth
htaleh
hehlta
Transposition2r
laehth
htlaeh
hehtla
Transposition0x2
ehlath
ehatlh
ehalht
haetlh
haelht
helaht
Slip3A
eahlth
haleth
heltah
heathl
Slip3B
ahelth
hleath
hetalh
heahlt
Omission
ealth
halth
helth
heath
healh
healt
Repetition
hhealth
heealth
heaalth
heallth
healtth
healthh
QWERTY Substitution
gealth
jealth
hwalth
hralth
heslth
heakth
healrh
healyh
healtg
healtj
QWERTY Repetition after
hgealth
hjealth
hewalth
heralth
heaslth
healkth
healtrh
healtyh
healthg
healthj
QWERTY Repetition before
ghealth
jhealth
hwealth
hrealth
hesalth
heaklth
healrth
healyth
healtgh
healtjh
QWERTY Substitution Transposed
egalth
gaelth
gelath
geatlh
gealht
ejalth
jaelth
jelath
jeatlh
jealht
whalth
hawlth
hwlath
hwatlh
hwalht
rhalth
harlth
hrlath
hratlh
hralht
ehslth
hselth
helsth
hestlh
heslht
ehakth
haekth
hekath
heatkh
heakht
ehalrh
haelrh
helarh
hearlh
healhr
ehalyh
haelyh
helayh
heaylh
healhy
ehaltg
haeltg
helatg
heatlg
healgt
ehaltj
haeltj
helatj
heatlj
healjt
WrongDoubles
$JSON
$address
$applyDefault
$clone
$commas
$copy
$copyFields
$delete
$entries
$expand
$filt
$getType
$isArray
$isBoolean
$isClass
$isDate
$isElement
$isFunction
$isNumber
$isObject
$isString
$isType
$isValidDate
$json2txt
$keys
$load
$matchall
$parseFloats
$pick
$postJSON
$prune
$save
$set
$sortBy
$stringify
$sum
$svgPoster1
$textify
$toFixed
$type
$without
Glossary
Transposition = adjacent pairs of letters are swapped
Omission = individual letters are missed out
Repetition = individual letters are entered twice consecutively
QWERTY substitution = letters are replaced by each of their QWERTY-keyboard based physical neighbours (e.g. 'h' gets replaced with y, u, j, n, b, g)
QWERTY repetition type 1 = letters are followed by each of their QWERTY-keyboard neighbours
QWERTY repetition type 2 = letters are preceded by each of their QWERTY-keyboard neighbours