Your credit score is just one element that the lenders look at when they evaluate you for a loan. It is still possible to get a home loan despite your poor credit, but it will be a challenge. If you want to boost your chances of getting approved, consider this:
- Make sure that you can document that you have been paying your bills and rent on time. That shows the lender that you are reliable, and that is favorable.
- You will probably have to pay a higher interest rate. So, you will have to see if your finances can afford a higher rate. Once your credit improves to a good level, you can refinance to a lower rate. 
- Ask your lender about an adjustable rate rather than a standard 30-year mortgage. You might be able to get a good rate from the start while you continue to work on improving your credit. Just keep your eye on how the rate adjusts each period. There will come a point when the rate reaches a high level. Hopefully, by then, your credit would have improved enough for you to refinance to a fixed rate mortgage.
- Go for for FHA loans that are backed by the federal government. Lenders tend to relax their credit qualifications a little for these borrowers. 
- If you have someone with good credit who is willing to co-sign your loan, that would look favorable to the lender. However, your co-signer has to understand his/her liability.
- If you have a healthy cash reserve, putting down a bigger down-payment might help. A down-payment that is more than 20% can make you a more favorable borrower.
- Try to boost your credit score to at least the mid-600s. Any number below that will make it very difficult for you to get approved.
One final note: beware of unscrupulous lenders who prey on borrowers in your situation. These "loan sharks" will gouge you. Work with a lender with a good reputation. Here a video with more tips:
Good luck with it!