Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang
nhieu tang » hieu lang, nhiet nang
chieu sach » chinh sach, chiet tach, chieu xanh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
dan thanh » dang thanh, danh thanh, ban thanh
cong dan » cong san, cong tan, huong dan
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 (nhieu tang))) or (chieu sach)) - thanh tung va nhung cong dan thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sang) OR (nhieu tang))) OR (chieu sach)) - thanh tung va nhung cong dan thanh san.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu sang) OR (nhieu tang))) or (chieu sach)) - thanh tung va nhung cong dan thanh san".
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sang) OR (nhieu tang))) or (chieu sach)) - thanh tung va nhung cong dan thanh san*.