Perhaps you should try some spelling variations:
quang luan » quan luan, quang tuan, quang uan
hieu hoat » hieu hoa, thien hoat, hieu luat
kiem soat » kiem toan
van hieu » cao hieu
van kiem » va kiem, van kien, van hien
qua van » quan van, qua ban, qua san
tinh » trinh, minh, kinh
duong » dung, huong, dong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh quang luan van hieu hoat ) or ( dinh duong qua van kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh quang luan van hieu hoat ) OR ( dinh duong qua van kiem soat ))*.