[Koha] Goober guide to searching?

Hi ya, Before we contemplate re-writing the wheel (as it were :-) Is there a goober guide to searching? Have checked out the 3.0 documentation but was after something specifically for the OPAC searchers (so without the configuration stuff) https://sites.google.com/a/liblime.com/koha-manual/Home/Table-of-Contents/se... https://sites.google.com/a/liblime.com/koha-manual/Home/Table-of-Contents/se... Cheers Rachel