Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sang » chieu sach, chieu xanh, hieu lang
khong cong » thong cong, khong cang, chong cong
tuong cua » truong cua, huong cua, thong cua
cua khong » hua khong, cua phuong, cua thuong
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, manh toan

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 sang - thanh tuong cua khong cong ((dan toan) or (van ban)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh tuong cua khong cong ((dan toan) OR (van ban)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh tuong cua khong cong ((dan toan) or (van ban)) cau*.