sphinix search with custom field ordering with relevence

Question

I'm using Sphinx QL for processing results. In my Sphinx Index there are numbers of fields like sub_cate_name, area_name, city_name and company_priority etc...

With my company priority field there were 1,2,3,4,5 priority into database. Company having low priority get first via sphinx search (order by priority asc).

I am searching with following query

SELECT * FROM sub_cate_index
 WHERE MATCH('(@(sub_cate_name,sub_cate_area,area_name,business_name) "^car dealers$")')
         AND city_name='ahmedabad'
 ORDER BY area_name ASC
 LIMIT 0,100000
 OPTION max_matches=100000, ranker=sph04;

I also tried out ORDER BY clause into Sphinx QL, but it would lose relevance of actual keyword search.

Any help will be appreciated.