Perhaps you should try some spelling variations:
tinh dung » trinh dung, tin dung, tinh quang
kien soat » kiem soat, bien soan, dien hoat
hien soan » bien soan, thien toan, dien toan
kien hoa » dien hoa, tien hoa, kien ha
dung dat » dung va, dung tai
van hien » van hieu, van tien
dat van » dao van, dat va, dam van
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh dung luan van ((kien soat) OR (kien hoa)) ) or ( tinh dung dat van hien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van ((kien soat) OR (kien hoa)) ) OR ( tinh dung dat van hien soan )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tinh dung luan van ((kien soat) OR (kien hoa)) ) or ( tinh dung dat van hien soan ))".
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van ((kien soat) OR (kien hoa)) ) or ( tinh dung dat van hien soan ))*.