You should read the help section (see top right) and the learning center (link at the very bottom of this page) for a lot more information on how to write and improve your hubs. You write a few lines, a poem and that's fine but it's way too little content to draw traffic. People might like it but many won't care because they are looking for something else.
If you write poems simply because you want to write poems then I have no further suggestions. But if you want to earn money you should write articles that people will find interest and that are relevant enough for advertisers. Then ads will be placed around your articles and then you can earn money. Have a look around to see what other Hubbers are doing and write some longer articles.