Fastcase has made changes to its search engine on the Boolean search page including an internal wildcard and unlimited maximum results (which clears up an issue with incorrect citation counts). Booleans, proximity and nesting also now play better together.
If you want to find cases that cite a particular law review article in Fastcase, you'll have to use proximity searching, understand when to omit punctuation and single letters, and apply the wildcard when appropriate.
Sorting (or reordering) the results page often gives you a different slice of hits to view. Learn your sorting options for databases such as Fastcase, HeinOnline and NewsBank.