Summary
The search criteria contains at least one character that has been designated as a word delimiter. Word delimiters are characters that mark the end of a word. These type of characters are not indexed and therefore a search cannot be performed on them.
Workaround
Try the following:
Note: A list of the word delimiters for a particular database can be viewed from the LaserFiche Administration Console.
More Information
If you would like to include the character in question in a future search, then you should change the status of the character from the LaserFiche Administration Console. After doing so, any future indexing will include the character in question. For more information on configuring word delimiters, please refer to the LaserFiche Administrator's Reference.