Perhaps you should try some spelling variations:
nhan dang » phan dang, tran dang
dong cong » duong cong, dung cong, dang cong
ho chieu » theo chieu, hoc thieu, doi chieu
nhan dan » phan dau, gian dan, nhan tai
cua dong » chua dong, cua cong, cua dang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
co hieu » cao hieu, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co hieu) or (ho chieu)) lang - ((nhan dang) OR (nhan dan)) cua dong cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co hieu) OR (ho chieu)) lang - ((nhan dang) OR (nhan dan)) cua dong cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co hieu) or (ho chieu)) lang - ((nhan dang) OR (nhan dan)) cua dong cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((co hieu) or (ho chieu)) lang - ((nhan dang) OR (nhan dan)) cua dong cong tan toan ban*.