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\<ahelp hid=\"sfx2:checkbox:rid_dlg_search:cb_matchcase\" visibility=\"hidden\"\>distinguishes between uppercase text and lowercase text.\</ahelp\>
\<ahelp hid=\"sfx2:checkbox:rid_dlg_search:cb_matchcase\" visibility=\"hidden\"\>phân biêt chữ hoa và chữ thường.\</ahelp\>