WordPress, by default, limits your search results to 10 per page. When doing a normal query, you’d use get_posts(numberposts=99) to determine how many results appear from your query. You use a different parameter, showposts, for search pages.
So how do you modify the query to show what you want? Simply take the current $query_string (generated by WordPress’s header functions) and modify its showposts. Make sure to do this before the loop and you’re all good! All the code you need is below.
query_posts($query_string . '&showposts=12');
Source: http://walrusinacanoe.com/web-development/775
Tags: limit search result on wordpress, tutorial wordpress, wordpress tips, wordpress trick
