Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh chau » thanh cha, thanh cham, thanh chu
tang luat » tang luan, hang luan, tong luan
tac thanh » bac thanh, cac thanh, tcc thanh
dong tac » cong tac, dong tai, dong bac

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 xanh) or (chieu sach)) - hanh ((tang luat) OR (nang suat)) cong dong tac thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - hanh ((tang luat) OR (nang suat)) cong dong tac thanh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - hanh ((tang luat) OR (nang suat)) cong dong tac thanh chau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - hanh ((tang luat) OR (nang suat)) cong dong tac thanh chau*.