How do I skip a match when using Ctrl+D for multiple selections in Sublime Text 2?

Just use Ctrl+K, Ctrl+D.

(for OS X: Cmd+K, Cmd+D)

Needs a bit of practice, but gets the job done!

You can press Ctrl+K and Ctrl+D at the same time to skip a selection. If you went too far with your selection, you can use Ctrl+U to return to a previous selection.

Note: Replace Ctrl with Cmd for Mac OS X.

The default configuration for this can be viewed by going to Preferences > Key Bindings-Default in the application menubar, where you will see something like this:

{ "keys": ["ctrl+d"], "command": "find_under_expand" },
{ "keys": ["ctrl+k", "ctrl+d"], "command": "find_under_expand_skip" }

If you want, you can configure the keys as per your needs, by going to Preferences > Key Bindings-User and copy the above code and then change the keys.