Perhaps you should try some spelling variations:
tinh dung » trinh dung, tin dung, tinh huong
kiem soat » kiem toan
quang san » quang ban, quang uan, quang van
kien soat » kien hoa, dien hoat, kiem sat
bien soan » bien so
van kiem » va kiem, van kien, van hieu
san van » tan van, tran van, dang van
luan » quan, lan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van kiem soat ) OR ( tinh quang san van ((kien soat) OR (bien soan)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tinh dung luan van kiem soat ) or ( tinh quang san van ((kien soat) OR (bien soan)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van kiem soat ) or ( tinh quang san van ((kien soat) OR (bien soan)) ))*.