Here are some rules Lexis-Nexis follows when doing searches:
If you type in a series of words, Lexis-Nexis will treat that as a phrase and retrieve only the stories or documents that contain that exact phrase.
To avoid just searching for a phrase, you'll need to add Boolean connectors to your search words.
Lexis-Nexis is not case sensitive, so it doesn't matter if you make your search terms upper or lower case. Lexis-Nexis will retrieve any documents with your search words, no matter which case was used for the words in the documents.
Lexis-Nexis ignores common words - THE, OF, HIS, MY, IS, etc. And it will treat the words AND, OR, AND NOT as Boolean connectors rather than search words.
If you want to search for a common word, such as a common word in specific phrase, put the entire phrase in double quotation marks ("").
Lexis-Nexis will automatically add the common plural form of a word to your search.
Thus if you type in the singular of a word for which the plural ends in an s or ies, Lexis-Nexis will also retrieve any story in which only the plural form of your word appears.
Similarly if you search for the plural of a word, Lexis-Nexis also will automatically retrieve any story in which only the singular form of your word appears.
Lexis-Nexis will treat a hyphen as a space if you include it in a search.
This can be a problem when searching for a word that is commonly expressed in three different forms - a single word, a hyphenated word or two words without the hyphen. An example of such a word is takeover, which often is written as take-over or take over.
If you want to make sure your search retrieves all forms of a word like this, the best approach is just to type the word without the hyphen and without any space in the word - in this case takeover.
Lexis-Nexis then will retrieve stories in which the word appears as a single word, as a hyphenated word or as two words separated by a space.