Excel: Get nth occurrence with multiple criteria (INDEX/MATCH)

I would like a formula to find the second occurrence of column A with "c" and "n" in columns B and C respectively. ``` A B C 1 a m 2 b n 3 c m 4 a p 5 b m 6 c n 7 a m 8 b p 9 c n ``` The solution is: 9. So far, I know how to get the nth occurence with one criteria: `=INDEX(A2:A10;SMALL(IF(C2:C10="n";ROW(C2:C10)-ROW(INDEX(C2:C10;1;1))+1);2))`