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Invalid Left-hand Truncation

Left-hand truncation is available when performing a search in the following fields.

  • Topic
  • Title
  • Accession Number
  • Identifying Codes

In Topic and Title searches, you must enter at least three characters after the wildcard when truncation is used at the beginning of a word. In Accession Number and Identifying Code searches, you must enter at least one character after the wildcard.

See also Right- and Left-hand Truncation for more information.

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Note: Left-hand truncation automatically turns off lemmatization. A search for a term such as *valves returns bivalves but not bivalve. Because this occurs, you will not get plural and singular forms of search terms resulting in fewer records. By adding right-hand truncation to your search, the product returns more records. For example, *valve* returns both bivalve and bivalves.

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Note: The product automatically turns off lemmatization if your search query exceeds the number of terms allowed in a search. When you exceed the limit, the product returns only exact matches.

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Did You Know ...

That the following wildcards (* $ ?) are allowed when using left-hand truncation in a search?