Truncation Operators or Wildcards
Allow searching on the stem or root of a word or allowing for
variable characters. Use the asterisk wildcard for truncation. Generally, you
must have a minimum of three characters at the beginning of a word as your stem basis, but
truncation seems to work best when the stem is longer, when plurals are represented by an
added "s" rather than "ies" or other forms, and the stem is not a root
to many other common words. The wildcard tells the search engine to match all characters
after it and increases coverage by 50% or more.
Example: bird* search will match the words
bird, birds, birding
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