I am not surprised you can't get anything to work. That is the most poorly written manual I have seen in a long time. Page 6 gives the method for searching for a code, but I think any code you might find for a Samsung TV will give you the same problems.

In this link, edmund explains why you are having the problem with your Samsung TV. [Link: remotecentral.com]

Since your code doesn't work, and I don't think you have learning capability, you probably will not be able to completely control your Samsung TV.