How to filter search results in a google or yahoo searchengineresult list

[niel]

On Monday 12 November 2007 23.15.00 Tipton, Timothy wrote:
> > I will try to explain a little more detailed, what kind of program I
>
> am
>
> > looking for:
> >
> > First I search in an search engine, and get 7.900 search results split
>
> up
>
> > on
> > 79 individual search result pages  (1,2,3 etc), all linked from the
>
> first
>
> > search result page.
> >
> > Then I would like to do a free text search on those 7.900 search
>
> results,
>
> > based on a more specific search term (I know what I am looking for),
>
> and
>
> > then
> > end up with maybe 80 search results, specific aimed at what I am
>
> looking
>
> > for.
> >
> > Then again i maybe would like to do another still more specific search
>
> on
>
> > those 80 search results, and maybe end up with 18 results.
>
> I don't know about yahoo, but on Google, if you do a search, for
> instance, on "gold rings" you get 1 million plus pages, if you scroll to
> the bottom of the page of the first results, there's a link there that
> says " Search within results" ... which takes you to a new search page,
> but only searches within the results of your original search.
>
> I would post a screenshot here, but since it's plain text... well...
>
>
> Give that a try.
> Tim

Strange things happen:

I am now searching for information about getting windows vista to double boot 
together with ubuntu 7.10 (my problem is, that vista will not boot when 
double installed together with ubuntu 7.10 - have tried two times).

I searced using firefox, in google on the following phrase:

"how to make vista double boot with ubuntu" (46.100 results)

then I gradually reduced the number of results by adding single words:

"how to make vista double boot with ubuntu -virtual" (10.900 results)
"how to make vista double boot with ubuntu -virtual -xp" (23.900 results)
"how to make vista double boot with ubuntu -virtual -xp +7.10" (398 results)
"how to make vista double boot with ubuntu -virtual -xp +7.10 -triple" (393 
results)

Then I used the "search within results" option, and inserted "+vista"
and got 935 results (that's a lot more than 393)?

When I searched using konqueror, searching on the same phrase,  I ended up 
with  427 search results?
When I then tried "search within results" and inserted "+vista" I got 2890 
results.

I did never use any double quotes in my search.