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
dung cong » dung trong
van thanh » ban thanh, van tuan
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
ban than » ban thanh, ban hang, ban hanh

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