Perhaps you should try some spelling variations:
quang quan » quang tuan, quang uan, quan quan
kien soat » kiem soat, bien soan, kien hoa
bieu toan » hieu toan, kiem toan, bien soan
van kien » van tien, van hien, van chien
quan van » quan va, quan luan, quan doan
van bieu » van hieu, van tieu, va bieu
luan » lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung luan van kien soat ) or ( tinh quang quan van bieu toan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luan van kien soat ) OR ( tinh quang quan van bieu toan )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung luan van kien soat ) or ( tinh quang quan van bieu toan ))*.