Yes, I built in that feature with "obamacare" in mind. Other popular terms we have special searches for include "CISPA", "SOPA", and "PIPA". This is less of a power user feature, and more to make the site make more intuitive sense to someone who's testing it out, or simply has a broader interest in what they know of as Obamacare, even if they don't know the official names or bill numbers of the original legislation.

Congress tries to keep up with popular names of legislation, but it's often slow. It was frustrating to me that, for a while, the word "SOPA" never appeared anywhere in the official data around the Stop Online Piracy Act, so you could go to THOMAS.gov and type in "sopa" and get nothing. Eventually, the Library of Congress added "SOPA" as an official nickname for the bill, but by the time they did the public fight over the legislation had ended.

We accomplished this through extremely simple means: maintaining a spreadsheet that links popular names to specific bill numbers. We make this spreadsheet public and welcome contributions. You can find more details about this here:

http://sunlightlabs.com/blog/2012/data-for-better-bill-searching/