Perhaps you should try some spelling variations:
tieu danh » dieu danh, tiep danh, thien danh
dong cong » duong cong, dung cong, dang cong
hanh ban » thanh ban, hang ban, hanh san
cua dong » chua dong, cua cong, cua dang
cong tac » cong ty
tac hang » tac vang, bac thang, tac chong
hang ca » hang va, nang cao, hang tai

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 danh - ((hanh ban) or (thanh san)) cua dong cong tac hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu danh - ((hanh ban) OR (thanh san)) cua dong cong tac hang ca.
• Adding a wildcard symbol may retrieve word variants: theo tieu danh - ((hanh ban) or (thanh san)) cua dong cong tac hang ca*.