hi
i want to join four tables.i used left join.thougn value are there in my db all the datas from
seekers_qualification, seeker_target tables are getting displayed as Null.but there is no Sql error

SELECT seekers.firstname, seekers.middlename, seekers.lastname, seekers.totalexperience, seekers.mobile, seekers_qualification.qualification, seeker_target.jobtitle, seeker_target.ann_salary, seeker_target.state, seeker_target.relocate
FROM seekers
LEFT JOIN (
SELECT seekers.firstname, seekers.middlename, seekers.lastname, seekers.totalexperience, seekers.mobile, seekers_qualification.qualification, seeker_target.jobtitle, seeker_target.ann_salary, seeker_target.state, seeker_target.relocate
FROM seekers
LEFT JOIN (
seekers_qualification, seeker_target
) ON ( seekers.seeker_id = seekers_qualification.seeker_id
AND seekers_qualification.seeker_id = seeker_target.seeker_id
AND seeker_target.seeker_id = seekers.seeker_id )
WHERE seekers.seeker_id = ‘40′
AND seeker_target.seeker_id = ‘40′
OR seekers_qualification.seeker_id = ‘40′
LIMIT 0 , 30
) ON ( seekers.seeker_id = seekers_qualification.seeker_id
AND seekers_qualification.seeker_id = seeker_target.seeker_id
AND seeker_target.seeker_id = seekers.seeker_id )
WHERE seekers.seeker_id = ‘40′
AND seeker_target.seeker_id = ‘40′
OR seekers_qualification.seeker_id = ‘40′
LIMIT 0 , 30