Nice explanation of search screen. Less helpful for search formulation, content, etc. Multiple pages are not easily printable for reference. Full support of parentheses. Large input box makes complex search statements easier to construct and see than in other engines.
Syntax is arcane and makes precise formulation of Boolean statements difficult.
OR is not available. Full support of parentheses. Full support of parentheses. Only for words with initial caps, e.g., John Wayne. Case Sensitivity Case sensitive only to upper case.