Alter Search Results display
You can simply add a new view mode for search results:


Go to admin/structure/types/manage/page/display (where "page" is your content type)
Expand the Show Custom display settings fieldset
Check Search index





Click Save
Go to admin/structure/types/manage/page/display/search_index (where "page" is your content type)


My advice would be to use the Display Suite module as well for extra fields and more options.