Complex sentence: Bùi Bích Phương (born 1971 in Hanoi) was crowned Miss Vietnam in 1988 when she was a 1st year English student at Hanoi general university.
Split into simpler sentences: Bùi Bích Phương (born 1971 in Hanoi) was crowned Miss Vietnam in 1988. During this period she was a first year English student at Hanoi general university.