Bosnian is currently not in the translatable language list of Chrome.
Bosnian was only added to Google Translate in May, 2013 (two weeks ago or so), so it may take some time before it comes to the stable Chrome. Generally, something like 18 weeks from the time it is implemented.
However, it is not included by default, even in the latest canary build (released almost every day with the newest changes). This is because it is an alpha language (meaning, its accuracy is not at its best shape at the moment).
To add all of the alpha languages to the list, you can start Chrome with the --enable-translate-alpha-languages command line flag.
When I start the latest canary build of Chrome with the aforementioned command line flag, Chrome offers to translate the website you mentioned.
For more information about command line flags -
For more information about the canary build and download links -