If I want information about a bible verse only such as John 3:16, how do I do the search so as not to get result such as John 3:1-18?
My knee jerk reaction would be to not use 'Search' but 'Passage Guide' or 'Exegetical Guide'
It might help if you told us what sort of information you wanted.
I believe Phil Gone answered this in Doug's post in the Faithlife Logos Search forum - https://faithlife.com/posts/4143655
When I am studying a passage... I have learned for myself anyway, to use 3 guides. Cross Reference Guide, Exegetical Guide and Passage Guide. Then if the passage in question is about a person... then I might add Biblical Person Study. All of which is found in the Guides folder.
It seems to me, that with these three (maybe 4) I can get a fuller picture of the passage.