Hi, PlsHelpMe, and welcome,
If it's compiled HTML Help (.chm) rather than JavaHelp that
you're developing, I'd recommend that you first run MJ's Help
Diagnostics to verify that the compiler components are correctly
installed. You can get this free utility from here:
http://helpware.net/downloads/index.htm#MJs
Does your help file make use of a "stop list" to decrease the
size of the full-text search index? If so, you need to ensure that
you're not searching for words that appear in this list.
Finally, it may be worth noting that the "Match Similar
Words" feature, if selected, works in US English help files only.
Pete