sql indexing suggestions needed

i'm going crazy trying to optimize this select.

The table has ~25 columns, the select is based on 10.   There are
approx 5 million records in the table and growing.

No matter how I index + analyze this table, including making an index
of every related column on the search, pg keeps doing a sequential
scan and never includes an index -- which takes ~2minutes to do.  I
really need to cut this down.

    SELECT
        *
    FROM
        table_a
    WHERE
        ( bool_a = False )
        AND
        ( bool_b= False )
        AND
        ( int_c IS NOT NULL )
        AND
        ( int_c <= 10 )
        AND
        ( bool_d = False )
        AND
        ( bool_e= True )
        AND
        ( timestamp_f IS NULL )
        AND
        ( bool_g IS False )
        AND
        ( int_h= 1 )
        AND
        ( bool_i = False )
    ORDER BY
        id ASC
    LIMIT 100

can anyone suggest an indexing approach that might get pg to use the
indexes ?  this is driving me crazy.

thanks.