If you're using OpenOffice/LibreOffice then you can use the end-word flag. (The effect is probably no different, but it's shorter to type.) Using [:alnum:] is not much shorter but I would hope (but don't actually know) it would not be limited to matching only ASCII alphanumerics.
And additional margin of safety may be had by allowing for extra or missing spaces:
Code:
\> *, *[:alnum:]+ +and
Or a variation without alnum that works in at least the basic instances (not sure if unusual punctuation might upset it):
None of these are really any better/smarter than what you already had.
If you're using some other software then check which variation of regex they are using to duplicate the effect of the above.