After editing a search you are returned to the same number page you were previously on. If the new search returns fewer pages than the previous search and you were previously on a page greater than the number of pages for the new search (Eg you were previously on page 6 of 10 and after editing the search there are only 3 pages) there is no way to navigate to the search results (in the example above you are sent to page 6 of 3).