Add "Sort by" in the same type style as the word "Similarity"
Place it to the left of the sort dropdown, which you can move over to make space
[ ] Clarifying text for previous use / later use:
In these mocks, I suggest moving down the results text to its own line in order to have some space for more descriptive language with regards to the results and what users are seeing: Previous use - "There are 15064 passages of preceding works (left) that share textual similarity with the writing of Thomas Gray (right)." || Later use - "There are 15064 passages of subsequent works (right) that share textual similarity with the writing of Thomas Gray (left)."
[ ] Clarify UI of the sort dropdown:
[ ] Clarifying text for previous use / later use: