The trick when Googling for song lyrics is to use quotation marks for phrases. Maeve, back in 2014, said that she Googled for:

Anzac "blithely and so willingly, to give their lives for you and me"

The quotation marks tells the search engine that you want those words in that order, or something very similar - if you have misspelled a word or substituted a different word.

I have never heard of this Anzac song. We never sang this one for the Anzac commemorations when I was at school in central east coast NSW.

Yes Joe, it's usually spelled Anzac, not ANZAC unless it is referring to the Australian and New Zealand Army Corps specifically. It has become a word in the Oz language, based on the acronym.

Background of the word 'Anzac'

"Historically, ANZAC (Australian and New Zealand Army Corps) was an acronym devised by Major General William Birdwood's staff in Cairo in early 1915. It was used for registering correspondence for the new corps. After the landing at Gallipoli, General Birdwood requested that the position held by the Australians and New Zealanders on the peninsula be called 'Anzac' to distinguish it from the British position at Helles. Not surprisingly, the word was soon applied to the men of the corps who became 'Anzacs'."

Anzac biscuits

I like the gooey ones. Some people like them crunchy.