"such knowledge" is a perfectly correct and usable phrase in written English.
For example, you could use it in the sentence "Gaining such knowledge will be invaluable to our success."
Exact(57)
Such knowledge does not come cheap.
Such knowledge did not come easily.
Such knowledge and pain are already there.
Such knowledge adds to and subtracts from the song's strength.
Such knowledge, he said, could allow more precise rules.
Such knowledge could be especially handy this week.
Such knowledge is improving our state of mind too.
Such knowledge will prove invaluable during the current crisis.
Such knowledge would be useful in many ways.
Such knowledge is usually good enough.
Such knowledge promotes teaching.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com