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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (((chieu sach) OR (chieu sang)))) - thanh tung cua nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (((chieu sach) OR (chieu sang)))) - thanh tung cua nhung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (((chieu sach) OR (chieu sang)))) - thanh tung cua nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (((chieu sach) OR (chieu sang)))) - thanh tung cua nhung cong dan toan cao*.