How do I get 2 column Google sitelinks instead of one line sitelinks?

[BostonWright]

Currently, if you search for my site's brand name on Google, we are the top result. However, rather than having 2 columns of sitelinks, there is just one line of 4 sitelinks. When you search for the site's domain (sitename.com), you get the full 2 columns of sitelinks. Are there any strategies for getting the 2 columns on more than just the domain name search? At the very least, I'd like to get 2 columns to appear when you do a brand name search, but it'd be great to get 2 columns of sitelinks for our top search queries as well.

Thanks for the advice...

[IPROdigital]

No strategies that I know of. I read this is something that is down to Google and can't find any info about this (I tried already).

[BostonWright]

Thanks. I had a feeling this was the case, but I just wanted some confirmation.