Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhan dan » phan dau, gian dan, nhan tai
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan tap » toan ban
dan va » doan va, dan ca, ban va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu tinh)) - nhan dan va nhung ((cong tan) OR (cong tac)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu tinh)) - nhan dan va nhung ((cong tan) OR (cong tac)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu tinh)) - nhan dan va nhung ((cong tan) OR (cong tac)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu tinh)) - nhan dan va nhung ((cong tan) OR (cong tac)) toan tap*.