I don't think any of the standard macros will do this, assuming you want to highlight specific hits within the page content. You would need to create a custom macro to find and highlight hits within the page. However, why not just use the find button in the browser?
If you are using cloud, you could try this new add-on that was recently submitted to the marketplace as part of the Codegeist 2016 hackathon:
Hi my Community friends! For those who don't know me, I'm a product marketer on the Confluence Cloud team - nice to meet you! For those of you who do, you know that I've been all up in your Co...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs