Should also allow kleene star (or kleene +), and it looks like it also does the extentions of {2,5}... etc.  So if you wanted at least two words from your wordlist file you'd need:

1(w1|w2|w3...){2}

But I think you can't get that with just the flat wordlist.

Vanitygen is a completely different project.  There are existing projects for trying to attack a private key, but these are mostly dictionary-based (for keys generated from mnemonics).  Brute-forcing a private key is considered unfeasible.  There's plenty of pre-existing threads on this, have your pick
https://www.google.com/webhp#q=site%3Abitcointalk.org%20crack%20private

What are "green" addresses?  Can you provide a link or something?  I don't know what that means.

I got a VPS from someone at a very cheap price. I wonder how can I use the VPS with Vanitygen. Any guide? Searched Google but dont seem to find any answer.

It is my first time using a VPS. I'm currently hosting with Nexhost. How do I install Vanitygen from the control panel? Is there a step by step guide?

PuTTY is a tool for accessing the server. You will also need to know how to download and unpack the package (wget and tar), and install or compile-and-install (package manager for dependencies, autogen/configure/make/make install for compiling+installation).

Given the question (bolded in the quote), I think the suggestion to use PuTTY is a little misleading.  PuTTY is an SSH client for Windoze.  But the question was about installing vanitygen from the control panel.  So, I'm pretty sure what MZ means here is that "no you can't use the 'control panel', you'll need to get a shell on the server using an ssh client (such as PuTTY)."  Then, in that context, you can see that hexfraction is pointing out that beyond just getting a shell on the server, you'll need to actually know some commands on the server.  At least wget/curl and tar, so that you can get the binaries (even if you don't want to compile).

BTW, PuTTY is quite an awesome program.  I only use GNU/Linux and I'm always super-frustrated when I sit down at a library or somewhere that has windows and I can't do anything or install anything.  PuTTY is wonderful because you don't need to "install" it for it to work.  I just download it and click it and it runs and I don't have to be an "administrator" or whatever it's called and then I can log into a real computer and starting getting stuff done!

You don't - but then again, it shouldn't have shown you any time at all - the lowercase letter L is not allowed at all.

If you meant "1koe1en", then it really shouldn't be too bad, especially with oclvanitygen, and especially with a decent GPU - certainly less than a day on average.

Really? It showed me around a year , i ran it for like 3 hours and then gave up since it really took all the juice of my System.
I will try 1koe1en
Thanks

Typically because the opencl stream isn't compatible with the hardware.  That would need somebody reasonably familiar with OpenCL - and preferably with access to the hardware - to fix.

That said - does it return an error, does it return GPU/CPU mismatches, or does it just sit there calculating forever not finding anything (while using the CPU - either via oclvanitygen or regular - does return results)?