* Something like this may do what you seek (which isn't clear to me):

Mx replace-regexp \boc.*\b \bco.*\b

** But why you'd do such a thing is a mystery to me--this may be more
useful to you:

Query Replace

M-% string <RET> newstring <RET>
Replace some occurrences of string with newstring.
C-M-% regexp <RET> newstring <RET>
Replace some matches for regexp with newstring.

** Forgive me if you know this already.

*** But your question is slightly funny to long time Emacs users like
myself because Emacs has been built, piece-by-piece, by thousands of
programmers, to do the most complex editing jobs you can imagine and the
regular expression library is the fastest in the world for "buffers",
"windows" and visual incremental search and replace (as I describe above).
By the way if you have to do search and replace, and you want to do it
visually, I suggest "QEmacs"--made by the same genius who created Qemu
(which is what VirtualBox is based on) and he also broke the record for
calculating the digits of π.  I'm talking about Fabrice Bellard--thank God
for him!

(I recommend QEmacs--just for the fun of it--it has a few amazing
abilities.)

* Finally, from reading your general [OT]/help me plea: I strongly suggest
you use FlySpell-Mode (in addition to "abbrev" functions that the other
Emacs hackers suggested).













On Sat, Mar 28, 2015 at 1:17 PM, Ken Mankoff <mankoff@gmail.com> wrote:

> Maybe key-chord mode could help with this?
>
>   -k.
>
> Please excuse brevity. Sent from pocket computer with tiny non-haptic
> feedback keyboard.
>
> > On Mar 28, 2015, at 12:57, "Samuel W. Flint" <swflint@flintfam.org>
> wrote:
> >
> > There's something on endless parentheses that will let you generate a
> correction abbrev with a keystroke.
> >
> > Samuel W. Flint
> > Please forgive any typos as this was composed on a screen keyboard.
> >
> >> On Mar 28, 2015, at 9:19 AM, Matt Price <moptop99@gmail.com> wrote:
> >>
> >> I make a lot of typing errors (I have an injury to one hand, which
> impedes bilateral cooperation). In Libreoffice I am able to define wildcard
> autocorrect objects, e.g.:
> >>
> >> oc.* ---> co.*
> >>
> >> This will correct ocrrect, ocmputer, ocndition, etc.  Does anyone know
> a way to do something similar in Emacs? Right now I am using abbrev mode
> and defining my errors one by one -- it is a very slow process since I make
> so many mistakes and have a moderately large vocabulary.
> >>
> >> I am sure this is possible somehow, I just don't know how.
> >>
> >> thanks as always,
> >> m
> >>
> >>
> >
>
>