Need to customize search functionalty on custom wordpress site

The site is : [login to view URL] It is created with the theme [login to view URL] Theme came with its own functionalty but we customized the theme with cimy extra field plugin, few other plugins and custom work aswell. So of course default search that came with theme is not working as it is not designed to get extra details that we added with other plugins. On the Find You Coach page: [login to view URL] The user should be able to enter: A keyword : Examples: Managing stress life coaching Lisa Lentino Life coach or/and A location 0r /and A distance to location. The search should return all coaches corresponding to the preceding criteria by searching: 1- Coach Name (post author name) 2-Title of the coach profile (title of the custom post). 3 -Post category. 4 -Solutions coach help people find. (author cimy fields) 5 - Post text. 6 - The coaching practice description. (author cimy field extra field) 7 – Coach location The results should be sorted by: 1 Distance to location searched 2 Alphabetical order. budget is $85 maximum. Time frame is 3 days.