Perhaps you should try some spelling variations:
trinh kien » trinh dien, trinh bien, trinh kiem
dinh dung » dinh duong, dinh hung, tinh dung
kien soat » kiem soat, bien soan, kien hoa
dang cong » dung cong
dung dat » dung va, dung tai
van kien » van tien, van hien, van chien
tin dang » tin dung, tin nang, tin mang
kien thu » kien thuc, kieu thu, kiem thu
dat van » dao van, dat va, dam van

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( dinh dung dat van kien soat ) or ( tin dang cong trinh kien thu ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( dinh dung dat van kien soat ) OR ( tin dang cong trinh kien thu )).
• Adding a wildcard symbol may retrieve word variants: (( dinh dung dat van kien soat ) or ( tin dang cong trinh kien thu ))*.