Hi,
Under Format, you can select "both" or "image only". The default is "both", so you can leave it like that if you wish.
The search term is the tricky part. If you click on "search tips" in the box at the top left of the screen, there are some helpful suggestions. Sometimes you have to get really creative!!
Then, in the "sort by" part, I usually select "oldest first". The default is "relevance". I am not sure how they decide that, but I would rather sort by date.
RK