>>>Why doesn't the net bring up the same search results?
Possibly:
(a) because you've changed your search terms (or even simply entered them in a different order) ;
(b) because you're using a different search engine ; or
(c) you've forgotten to use a facility within the search engine that you previously used. (e.g. perhaps you remembered to click on 'Shopping' in Google yesterday but you're only looking at the general search results today).
You've not stated which browser you're using. With Firefox, clicking on 'History > Show All History' will find everything which you've not deleted (either manually or through settings you might have in your browser, such as 'Clear history upon closing'). Other browsers have something similar.
Beyond that, there's not much we can do to help you unless, of course, you tell us what it is that you're actually seeking to buy.
Chris