The phrase "add to our knowledge" is correct and usable in written English.
It can be used when discussing the contribution of new information or insights to a collective understanding or body of knowledge.
Example: "The research findings will add to our knowledge of climate change and its effects on biodiversity."
Alternatives: "enhance our understanding" or "contribute to our knowledge base."
Archive images add to our knowledge of her.
This new research does add to our knowledge.
"Dollar values aside, these discoveries add to our knowledge".
What can historian Ruth Harris, of New College Oxford, add to our knowledge and understanding?
What did Zac Goldsmith's Tory conference speech add to our knowledge about his remedies for London's housing problems?
These apparitions are impossible to forget, yet what can they add to our knowledge of a man who seemed, even when alive, like a dapper and dissatisfied ghost?
Yet while such comparisons can add to our knowledge and understanding of what Hitler and the Nazis did, they can also blur distinctions by homogenising all acts of mass murder until it is impossible to tell them apart.
I saw an opportunity to apply the technology to the Hunterian skull: first to test the credibility of its connection to Bruce, and then to try to add to our knowledge of Scotland's greatest king".
For the moment all that is being done with the V-2s is a series of experiments that will add to our knowledge of the region high above earth.
Those details matter not so much because of any criminality they might reveal -- we are rapidly learning that there is no such thing as a prosecutable corporate crime anyway -- but because of what they may add to our knowledge of the ethics, policies and personnel of a secretive administration to which we've entrusted both our domestic and economic security.
But it does add to our knowledge of the beginnings of the radiation that ultimately led to the huge diversity of birds that are alive today, and so any extra piece of the puzzle (even if we have not have it in quite the right place yet) is valuable.
