Transcriptions

[ReneZ]

And in case of Voynichese I think it's normal to expect for example "o" to match "o with plume", so "qoky" should match You are not allowed to view links. Register or Login to view. or otherwise search results would depend too much on pedantry of a transcriber; if a transcriber decides one day that there are two kinds of "d" this shouldn't break simple search queries. 
Thus, some "symbol matching rules" are also required to provide an adequate search engine and these rules heavily depend on transliteration strategy used and probably are not universal.

Indeed, I do not know the exact matching rules of voynichese.com . However, I believe it is in everyone's interest to have clearly defined rules. There are easy ways to define whether the plumes (represented by a single quote) should be significant characters, or ignored. This can all be done with bitrans tables, but also in different, specific, ways.

If a transcriber (or researcher) decides that there are two kinds of 'd' (GC has at least three) then this is a change in the alphabet, and this can be communicated to the search engine by offering a new table (for example, but not necessarily from STA to the new alphabet).

By the way, if the transliteration at your web site includes characters that are not part of STA1, I'd be happy to extent STA in order to incorporate them. This can be at any later time of course.