Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
chua dong » cua dong, ha dong, hoa dong
so thiet » soc thiet, hoc thiet, hoa thiet
huy dong » ha dong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (so thiet)) tach - hanh tranh ((chua dong) OR (huy dong)) cong van toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (so thiet)) tach - hanh tranh ((chua dong) OR (huy dong)) cong van toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (so thiet)) tach - hanh tranh ((chua dong) OR (huy dong)) cong van toan ban*.