Exact match with Contents' contain match

Hi,
I cannot figure out how to limit results for "exact words" with Content + contain match + Custom List Item.
Text file have rows (for instabce):
India
Mac
The problem is that all words that includes partially these, such as, Indiana, MacBook will give a positive match.
The question is, how to limit matches to complete words of the list? I tried some RegEx symbols without luck.
ps. The problem is exact the same as here: https://www.noodlesoft.com/forums/viewtopic.php?f=4&t=9300&p=24742&hilit=exact+word#p24742
I cannot figure out how to limit results for "exact words" with Content + contain match + Custom List Item.
Text file have rows (for instabce):
India
Mac
The problem is that all words that includes partially these, such as, Indiana, MacBook will give a positive match.
The question is, how to limit matches to complete words of the list? I tried some RegEx symbols without luck.
ps. The problem is exact the same as here: https://www.noodlesoft.com/forums/viewtopic.php?f=4&t=9300&p=24742&hilit=exact+word#p24742