Search feature inside of online Handbook

It would be cool if the Search bar on the right side of the Online Handbook page would only search INSIDE the Handbook, because, in the end, that's why the user came there, to search in the handbook, I'm talking about the http://musescore.org/en/handbook page.

Otherwise, if that is not wanted, then it would be cool if the online Handbook would have an other search bar of it's own so that the user can really search in it.

A lot of times searching inside a .pdf file is a bit annoying due to the Adobe Acrobat Reader and hence searching online is a lot easier!

Thanks!