If you have FAST Search Server 2010 for SharePoint installed, the following options are available under Central Administration > Applications Management > Manage Service Applications > Search Service Application > FAST Search Administration.
Crawled properties are automatically extracted from crawled content. You can make the crawled properties part of the search user experience by mapping the crawled properties to managed properties.
Manage property extraction
The Manage property extraction feature identifies key information such as person names, company names, and geographic names/locations in documents. You can use the properties to improve the search experience, for example by providing search result refinement based on the properties.
Spell checking management
You can improve the search experience by adding spell checking exceptions. Spell checking exceptions are words or phrases that should be excluded from spell checking.