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 the 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.