Why is it that most guys that I meet online through personals all that they want is ???

How do I meet nice guys online through personals??? Most guys that I meet online thats all that they ever want is ??? I work two jobs so it is very hard for me to get out to meet guys so I use the personals online and the ones that I meet all they want is not that that is bad or anything but I want more than just . Please help!!!!