In Power Search, can specify domain or type of document or subject. No, and no stemming . Search variant endings and synonums separately. Also stems allowing most plurals and common endings. Upper case retrieves only matching upper case.
Lower case retrieves either lower or upper case.
Also accent and character sensitive. Major Romanized and Asian languages in Advanced Search . Yes, extensive list includes major Romanized and Asian languages. Yes, extensive list includes major Romanized and Asian languages. Allows you to specify matching character sets.