Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
hanh dung » thanh dung, anh dung, hanh dong
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, cong cong
dung cong » dung trong
van tan » van tuan, van ban, van tai
tan cau » toan cau, van cau, tan ca

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 trinh - hanh dung luan ((((hang cong) or (bang cong))) or (dung cong)) van tan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu trinh - hanh dung luan ((((hang cong) OR (bang cong))) OR (dung cong)) van tan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu trinh - hanh dung luan ((((hang cong) or (bang cong))) or (dung cong)) van tan cau*.