Hi Rod,
I am afraid the search uses the plain MySQL full text indexing and
tuning it would probably cause more troubles than it solved.
I do have a fudge where I trigger a code based search on fewer than
two chars. Try looking of 'K' or 'KW' for example and it slips into
code mode. But I had complaints when I triggered this on three chars
because people couldn't look up places like 'Kew'. There is no
restriction on case on codes so it doesn't help to only look for three
caps - some one would complain that it didn't find lowercase then
You can always do code based searches just by prepending the search
with @CODE: or using the code search page here:
http://www.biodiversitycollectionsindex.org/search/by-code
I was once told never to write a search engine where people have the
ability to know what is in the database by other means. The wonderful
thing about Google is you don't know what they have indexed. People
only really complain about Google when they have put a site up and
Google doesn't return their pages. Who knows what it isn't returning
the rest of the time!
Hope this helps,
Roger