import re
s = "These.Final.Hours-AUSVERSION.2013-TEST-TESTAGAIN- YIFY.cp(tt123456).MiLLENiUM.mp4"
print(re.search(r'^(?:.*?-\s*(\w+))', s).group(1))
print(re.search(r'^(?:.*?-\s*(\w+)){2}', s).group(1))
print(re.search(r'^(?:.*?-\s*(\w+)){3}', s).group(1))
print(re.search(r'^(?:.*?-\s*(\w+)){4}', s).group(1))
aW1wb3J0IHJlCgpzID0gIlRoZXNlLkZpbmFsLkhvdXJzLUFVU1ZFUlNJT04uMjAxMy1URVNULVRFU1RBR0FJTi0gWUlGWS5jcCh0dDEyMzQ1NikuTWlMTEVOaVVNLm1wNCIKcHJpbnQocmUuc2VhcmNoKHInXig/Oi4qPy1ccyooXHcrKSknLCBzKS5ncm91cCgxKSkKcHJpbnQocmUuc2VhcmNoKHInXig/Oi4qPy1ccyooXHcrKSl7Mn0nLCBzKS5ncm91cCgxKSkKcHJpbnQocmUuc2VhcmNoKHInXig/Oi4qPy1ccyooXHcrKSl7M30nLCBzKS5ncm91cCgxKSkKcHJpbnQocmUuc2VhcmNoKHInXig/Oi4qPy1ccyooXHcrKSl7NH0nLCBzKS5ncm91cCgxKSk=