Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, truong thanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
tinh ban » tinh bang, trinh ban, tinh bac
ban hanh » ban hang
cong tan » cong tac, cong san, cong ty
than ban » thanh ban, toan ban, than man

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

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