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From: Eli Zaretskii <eliz@is.elta.co.il>
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Subject: Re: Apropos commands and regexps
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On Sat, 18 May 2002, Richard Stallman wrote:

>     > I don't like the "and" approach -- at least not as the default.
> 
>     I'm afraid anything else will bring too many hits.
> 
> The rule that at least two of the keywords must match
> should not bring too many hits, I would think.

An example with two words discussed here brought about 70 hits, which 
IMHO is too many.

Moreover, I think a rule based on the number of matched keywords is not 
good enough, since sometimes even one word is enough to yield a very 
accurate result.  Try "M-x apropos bell RET", for example.