Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'cobra', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
cobra
Transposition0
ocbra
cbora
corba
cobar
Transposition1
bocra
crboa
coarb
Transposition2
robca
cabro
Transposition2r
rboca
carbo
Transposition0x2
ocrba
ocbar
cboar
Slip3A
obcra
cbroa
corab
Slip3B
bcora
croba
coabr
Omission
obra
cbra
cora
coba
cobr
Repetition
ccobra
coobra
cobbra
cobrra
cobraa
QWERTY Substitution
xobra
vobra
cibra
cpbra
covra
conra
cobea
cobta
cobrs
QWERTY Repetition after
cxobra
cvobra
coibra
copbra
cobvra
cobnra
cobrea
cobrta
cobras
QWERTY Repetition before
xcobra
vcobra
ciobra
cpobra
covbra
conbra
cobera
cobtra
cobrsa
QWERTY Substitution Transposed
oxbra
xbora
xorba
xobar
ovbra
vbora
vorba
vobar
icbra
cbira
cirba
cibar
pcbra
cbpra
cprba
cpbar
ocvra
cvora
corva
covar
ocnra
cnora
corna
conar
ocbea
cboea
coeba
cobae
ocbta
cbota
cotba
cobat
ocbrs
cbors
corbs
cobsr
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