Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
tuong cua » truong cua, huong cua, thong cua
cua nhung » va nhung
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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