Perhaps you should try some spelling variations:
kien soat » kiem soat, bien soan, kien hoa
tinh dung » tin dung, tinh quang, tinh huong
dung quan » dung quang, luong quan, dang quang
lien soat » kiem soat, bien soan, lien son
van kien » van tien, van hien, van chien
he lien » de lien, he mien, thi lien
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: (( trinh dung luan van kien soat ) or ( tinh dung quan he lien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh dung luan van kien soat ) OR ( tinh dung quan he lien soat )).
• Adding a wildcard symbol may retrieve word variants: (( trinh dung luan van kien soat ) or ( tinh dung quan he lien soat ))*.