https://help.libreoffice.org/24.2/en-US/text/scalc/01/12040300.html?System=WIN&DbPAR=CALC&HID=modules/scalc/ui/advancedfilterdialog/dialog-action_area1 The criteria used there use the same syntax as those used in database functions [1], or in e.g. SUMIFS [2]. These all need to have consistent description of the criterion syntax - see bug 131995, where the documentation was introduced. [1] https://help.libreoffice.org/24.2/en-US/text/scalc/01/04060101.html?DbPAR=CALC [2] https://help.libreoffice.org/24.2/en-US/text/scalc/01/func_sumifs.html?DbPAR=CALC
Olivier Hallot committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/help/commit/5217d34ba89beaa113bb30e4eb76b6c2c0a7ee26 tdf#160903 Advanced Filter help page needs description of "criteria" syntax