Perhaps you should try some spelling variations:
tieng soan » tieng han, bien soan
sang tieng » bang tieng, nang tieng, vung tieng
tinh dung » trinh dung, tin dung, tinh quang
kien soat » bien soan, kien hoa, dien hoat
kiem soat » kiem toan
dung dat » dung va, dung tai
dat sang » dat hang, dat quang, lam sang
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 (kiem soat)) ) or ( tinh dung dat sang tieng soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van ((kien soat) OR (kiem soat)) ) OR ( tinh dung dat sang tieng soan )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tinh dung luan van ((kien soat) OR (kiem soat)) ) or ( tinh dung dat sang tieng soan ))".
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van ((kien soat) OR (kiem soat)) ) or ( tinh dung dat sang tieng soan ))*.