Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban
tung va » trung va, tuong va, dung va

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