Perhaps you should try some spelling variations:
quang quan » quang tuan, quang uan, quan quan
kiem soat » kiem toan
hieu toan » thien toan, kiem toan, hieu van
bieu toan » kiem toan, bien soan, dien toan
van kiem » va kiem, van kien, van hieu
quan van » quan va, quan luan, quan doan
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 kiem soat ) or ( tinh quang quan van ((hieu toan) OR (bieu toan)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luan van kiem soat ) OR ( tinh quang quan van ((hieu toan) OR (bieu toan)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin dung luan van kiem soat ) or ( tinh quang quan van ((hieu toan) OR (bieu toan)) ))".
• Adding a wildcard symbol may retrieve word variants: (( tin dung luan van kiem soat ) or ( tinh quang quan van ((hieu toan) OR (bieu toan)) ))*.