Multiple, Searchable, Custom Fields

Hello chaps,
I am building a Real Estate listing site. The listings are added threw the WP backend and I am using several custom fields, such as ‘Price’ ‘Area’ and ‘Type’
I want to make these custom fields searchable, by having a search form with several drop downs and a text area for the ‘Area’
And then of course, the search form needs to return the results.
I’ve looked around and found people having the similar problem.

Any help, please?