Regarding your first question; the search system omits any keywords that are two or less characters in length (well, bytes actually - you CAN search for a single kanji character for example, since they are 3+ bytes). It does not omit the search word "Ys" however, because it is quite common and has become an exception. This is all in place, quite likely, to try to prevent too many search results and overloading the server.
There may be ways to get around the omission of roman numerals though, depending on your situation.. You can enclose roman numerals in quotation marks -- which, by the way, enforces an exact search of whatever is within the quotes -- and then add space(s) to the start and/or end inside the quotation. So as long as the roman numeral is between two words (e.g. Fantasy X Original), you could search for X via " X ", or IX via " IX ", " IX", or even "IX ", etc. etc.
I hope that helps some.
Last edited by Nisto; Jul 4, 2014 at 01:06 AM.
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