Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
va phuong » va thuong, cac phuong
thanh cau » thanh chau, nhanh cau, thanh ca
thanh mau » hanh mau, thanh san, thanh hai
va trong » va truong, va thong, va tuong
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - thanh trung ((va trong) or (va phuong)) cong san ((thanh cau) OR (thanh mau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh trung ((va trong) OR (va phuong)) cong san ((thanh cau) OR (thanh mau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh trung ((va trong) or (va phuong)) cong san ((thanh cau) OR (thanh mau))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung ((va trong) or (va phuong)) cong san ((thanh cau) OR (thanh mau))*.