Simply enter the word you wish to find and the search engine will search for every instance of the word in the source material. For example: Fight. All instances of the use of the word fight will show up on the results page.
Using a wildcard (*) will increase the odds of finding the results you are seeking. For example: Fight*. The search results will display every instance of fight, fights, fighting, etc. More than one wildcard may be used.
Searches are not case sensitive. For example: napoleon* wars will come up with the same results as Napoleon* Wars.