Did you think about why its not working in the first place? Think as a user why they should visit your site and come back again. Thats the first thing to do.
As per marketing there are tons of ways, many can be done free. Problem is not the same technique work for all. Its always a trial and error process keeping the ones work for you. Plus always emphasize on marketing that is targeted; because there are better chanced of getting users who might be your regulars.
Search engine optimization will only drive traffic to the website. The traffic getting converted into regular clients depends on how good the website is. As said by webcosmo, people should have a reason to visit your site again.
I am doing maximum things but same result what should i do know??
Get into Social Media
You Submit More and more Directory and Social Bookmarking sites
Hi,
Very useful theme. Thanks for sharing.
Andy
To add more in Jun Valasekās list
Blog Creation and to update it regularly.
Articles submission
Press releases.
Just continue on linkbuilding, Get quality related backlinks, Ranking on serp can definitely help you with trafficā¦
These four are the probably the most important ones 
You can get links back to your web site and actually create traffic to your web site by submitting articles to article directories.
product directory submission for bring targetted audience
press release and submission in social bookmarking sites
that will help you bring traffic to your site
Article submission
Blog posting
Forum posting
There is lot of junk and fake websites are available on internet, in this case it is really hard to find and visit useful and real website. Most of the time we find only useless articles. So your website do not have enough visitors. Try to give them something useful, so they can recommend it their friends.
If you trying to increase traffic by blogs or forums, keep in mind only 1% users hit your website.
I will wait for your feedback
Do more work in On Page Optimization and also Social Media Optimization.
Do SEO, SEM and online advertising for better traffic to your website.
seopigneo - for fast and high quality trafficā¦ use Google AdWords
and learn alot about SEO
Looks like the usual list:
forums
blog commenting
social networking
social bookmarking
Yahoo Answers
Yahoo and Google groups
press releases
directory submissions
article marketing
Onsite and Offsite SEO
PPC
other good ways is to use software like SiteRSiner (http://www.sitersiner.site40.net).
thats there new website, its not up for sale on there now, but i got a copy sold to me by sending them an email
there is also xrumer, but it cost alot more, and dosnāt make nearly as many backlinks.
Post your website links to web directories related to your website.
Practice online marketing and SEO techniques for better traffic to your website.