Credit cards for people with bad credit are difficult to get - as anyone who has ever had problems with poor credit knows.
Credit card companies, for the most part, are simply not willing to risk lending to persons with finanical problems.
This makes it very difficult to get the money you need.
If you find pretty much all card companies reject you application for cards, then there are a few specific things you need to do to ensure you improve your credit history.
There are also some options out there for looking at lenders who will give out poor credit cards.
Now, the first thing you should do to improve your credit is get your credit report and see how exactly you stand in terms of history.
The worse your credit, the more difficult it will be to get cards.
But at the very least, you should know what lenders are looking at.
If you can find credit reporting errors (these do happen), you may have a good chance of actually improving your credit scores within a month, provided the company reporting your scores fixes them - so make sure to report them asap.
Another option is to seek out a secured card for people with bad credit.
These are offered both by banks and online.
A secured card is basically a card where you give the lender a large deposit (500/100/1500, etc) which becomes the balance limit of your card.
You then make regular payments.
The deposit is returned to you in time when you prove yourself.
There are options out there for getting cards with poor credit - you just have to look.