I don't think that hitting the 'next page of results' counts as a search. And whether they display 10 results initially forcing the user to hit 'next' twice to see all 30 results instead of just displaying 30 results outright... the search result set is still the same. If those 30 results don't contain what the user is looking for, they will still have to perform another search.

I guess this is assuming that people don't just re-search with different terms if what they are looking for isn't right there on the first page.