Perhaps you should try some spelling variations:
hanh tranh » hanh trinh, hanh trang, lanh tranh
tieu tang » kieu trang, dieu trang, nhieu tang
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tang - ((hanh tranh) or (canh tranh)) cua tong cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tang - ((hanh tranh) OR (canh tranh)) cua tong cong van toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu tang - ((hanh tranh) or (canh tranh)) cua tong cong van toan tap*.