Louis Vuitton is on a mission. It has singled itself out as the spearhead of campaign to manage its brand online, and the largely un-regulated search engines are its enemy.
Louis Vuitton has a problem with the google adwords results. They hate the fact that google is profiting from allowing people to use the Louis Vuitton brand name in adwords. They also feel that Google is profiting from giving people who infringe trademarks, with fakes, the ability to promote.
Google generates $21 Billion a year from adwords so as you can guess they dont really want to change anything unless they have to.
What you will notice is that the words Louis Vuitton doesnt appear in the title. As you can see there are plenty of way to circumvent that if you need to.
Unfortunately for Louis Vuitton the European Court of Justice has ruled against them, so its business as usual. This issue is far from dead though with appeals already in place.
I think this is a problem across the board for many brands but trying to fight is an uphill battle. Until a governing agency rules over the internet it will be difficult for big brands to fight this issue.