I\'m struggling with a formula =IF(TEXTJOIN( , 1, C3:C)<>"", FILTER(A2:A, REGEXMATCH(LOWER(A2:A), TEXTJOIN("|", 1, LOWER(C3:C)))), "no
=IF(TEXTJOIN( , 1, C3:C)<>"", FILTER(A2:A, REGEXMATCH(LOWER(A2:A), TEXTJOIN("|", 1, LOWER(C3:C)))), "no