[Koha] Advance search limits by language

Dear all, Advance search limits by language is not working although I add a line 'language' =>'008:35-37' to NoZebraIndexes I read from CCL Indexing Chart which language only index from 041, but I think 008:35-37 will be more specific. Anyone can help? Shelley Sii 徐微菁 Assistant Librarian Logos Evangelical Seminary 正道福音神學院 Tel : 626-571-5110 ext.124 Fax : 626-571-5119 <http://www.logos-seminary.edu> www.logos-seminary.edu