Newcheater is kind of correct, you want yourself to be god, and thus godmode will start by searching values applying to yourself.
It's actually fairly easy, but unfortunately, as stated before: (nearly everything about) health is serversided.
Good thing is: it is possible to make server-sided godmode and it's pretty easy.
I've spent days of searching through every little bit of the health value to find results, in server-sided mode and in client-sided.
Since you want to find godmode, you'll have to search in server sided.
This means you'll have to host the server in order to make it work.
Well, to be honest, it's really darn easy to find the correct health value, the fun start with searching through instructions.
You've been searching the right way for the value, you only need to perform it on yourself. However, finding it is a bitch and will cost quitte some time. That's why I'll give you an easier way.
Since I've done this a thousands times, I happen to know that the full health value is as follows: 1128136704.
So, what you want to do is this:
1. Start up the server.
2. Become vc medic (doesn't really matter what side and class, but that's the way I usually do it, but I think this is the nicest way to test )
3. Load up t-search and do an exact search for: 1128136704. (Make sure your health is still full!!)
4. Lose some health, search has decreased.
At this point you probably only have one value left.
If there are more, no problem, just search increased after gaining health or has not changed; just keep going till you have less than 10 left.
Freeze the value you have left when you are full on health, jump off a cliff that isn't high enough to kill you, but does make you lose health.
If you have the correct value, your health should go down and immediately restore.
Well, that was the easy part. You found the health value.
If you're interested in how to continue at this point, just post a reply here, I'll write a follow-up sequal to this small tut.