No matter what I search for, the search result page shows all my pages, even blank pages with no content.

Search was working fine, so something changed along the way as I've been making custom page types. How/why would this have anything to do with it?

Here is my search code which is pretty standard:

function SearchForm() {
		$searchText = isset($_REQUEST['Search']) ? $_REQUEST['Search'] : 'Search';
		$fields = new FieldSet(
	      	new TextField('Search', '', $searchText)
	  	);
		$actions = new FieldSet(
	      	new FormAction('results', 'Search')
	  	);

	  	return new SearchForm($this, 'SearchForm', $fields, $actions);
	}
	
	function results($data, $form){
		$data = array(
			'Results' => $form->getResults(),
			'Query' => $form->getSearchQuery(),
			'Title' => 'Search Results'
		);
		
		foreach($data["Results"] as $page) {
			if($page->Filename) {
			$data["Results"]->remove($page);
			}
		}
		
		return $this->customise($data)->renderWith(array('SearchResults', 'Page'));
	}

Here is the search URL produced by a search

http://domain.ca/home/SearchForm?search=test&action_results.x=0&action_results.y=0&action_results=Search&start=10

I have no idea where to even begin looking for a fix.
Suggestions/thoughts?