A good domain name can help you to get traffic. Your domain name must be so catchy and easy to remember, that will help people to find your website easily and to return for future visits. It's also a good idea if your domain name gives some indication of the type of business you have. For example, if you want to have a website that helps people consolidate their hand phone, it would be a good idea to have a domain name that contained some or all of those words. You might do good with "handphone.com" or "buyhandphone.com" or something similar. You can even use hyphens in the domain name, like "buy-hand-phone.com", etc.