Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu nganh » vien nganh, hiem ngan, hieu manh
chiet tach » chieu sach
manh hung » anh huong
tuan ban » tuan bang, toan ban, luan ban
ban cong » bang cong, van cong, phan cong
cong san » cong tac
san toan » van toan, dan toan, manh toan
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 ((hieu nganh) or (chiet tach)) - ((thanh trung) or (manh hung)) tuan ban cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu nganh) OR (chiet tach)) - ((thanh trung) OR (manh hung)) tuan ban cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu nganh) or (chiet tach)) - ((thanh trung) or (manh hung)) tuan ban cong san toan tap*.