Hi Pragati,
One clarification: does your ticket include both strings, or just one of them?
The rules are evaluated in order 1...n, and the system stops after the first match. So if your ticket includes both strings, the system will always apply only the first rule.
Example:
Set up
Rule 1: if subject contains string XXX -> Team A
Rule 2: if subject contains string YYY -> Team B
Scenarios
a. Ticket "123 XXX 456" -> Team A (rule 1 applies)
b. Ticket "555 YYY 777" -> Team B (rule 2 applies)
c. Ticket "333 XXX YYY" -> Team A (rule 1 takes precedence)
I am not sure if you are in scenario c and get Team A (which is correct), or if you are in scenario b and get Team A (which would be a bug).
Thanks,
Gab