Believe it or not this is often overlooked. If you mistype a word on an Internet search, you may find several results, but they also will have misspelled that word. When searching, it is usually best to search for nouns in the plural and for verbs ending in -ing. But there still may be variations. As far as a computer is concerned, its an altogether different search.
People say the same thing in many different ways.
For example, if you don't find anything when you search for 'making money' or TEN, then try 'fund raising' or 'Texas Educational Network'. In general it is better to avoid using abbreviations and punctuation when searching, but occasionally it is useful. Then redo your search using these words. Often this will help you figure out how the people who put the database together have named their topics, and thus, what words you should use to better find your topic. Look for a broader topic.