Perhaps you should try some spelling variations:
tieu lang » hieu lang, tien lang, tieu dung
hanh hang » thanh hang, hang hang, hanh mang
cua nhung » va nhung
hanh han » hanh nhan, hanh phan, hanh san
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cao » toan ban, toan tap

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 lang - ((hanh hang) or (hanh han)) cua nhung ((cong tan) OR (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu lang - ((hanh hang) OR (hanh han)) cua nhung ((cong tan) OR (cong san)) toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu lang - ((hanh hang) or (hanh han)) cua nhung ((cong tan) OR (cong san)) toan cao*".