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