For first-time users (faculty and students) using Nexis Uni can be challenging; this help page, maintained by LexisNexis, is a great resource to use to find answers.
You can use boolean logic to change the results in a Nexis Uni search. Click on the link below to see how the words "and, "or" and "not" change the results you'll get in a search.
Nexis Uni allows you to use symbols at the end of keywords to search for multiple, related keywords at once.
So, looking at the help guide we learn that for mulitple words; use an excalmation mark (!)
It looks something like this: immigra!
gives you results for immigrant and immigration
You can also you an asterik (*) to replace one letter in a search.
It looks something like this: wom*n will give results for woman and women