Hi @user504034,
As @james_whalley mentioned, Canvas itself doesn't really track use of a feature like find, but if your a school/district has Respondus Lockdown Browser, or online proctoring software there could be a lot of additional things logged outside of Canvas itself. This isn't a question we'll be well-equipped to answer here in the community because of the number of variables involved. I'd really suggest talking to your teacher about what happened if you are concerned. Being open and honest usually goes a long way in the world of education, but obviously can't make any promises.
-Chris