Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sang » chieu sach, chieu xanh, hieu lang
tuong cua » truong cua, huong cua, thong cua
cua khong » hua khong, cua phuong, cua thuong
cong bang » cuong bang, dong bang, hong bang
ho chieu » theo chieu, hoc thieu, doi chieu
cong ban » cong san, cong tan, cong dan
than cau » toan cau, phan cau, than cap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh tuong cua khong ((cong ban) OR (cong bang)) than cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh tuong cua khong ((cong ban) OR (cong bang)) than cau*.