By default the CV suggestions only show visually similar taxa that have been seen nearby (as defined here).
If yiou’re only seeing nearby suggestions, you should see “seen nearby” next to every suggestion, and you’ll see the option to switch to “Include suggestions not seen nearby” at the bottom of the list (red arrow):
This choice is “sticky” meaning that if you do choose “Include suggestions not seen nearby”, you’ll keep seeing those until you switch back.