Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang
nhieu tang » hieu lang, nhiet nang
canh nhung » anh nhung, hanh nhung, doanh nhung
nhung cong » dung cong, thong cong, hang cong
trinh toan » tinh toan, thanh toan, trinh han
thanh tra » thanh toan, thanh hoa
tra canh » tra danh, tran manh, tra chinh
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: ho ((chieu sach) or (((chieu sang) OR (nhieu tang)))) - thanh tra canh nhung cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (((chieu sang) OR (nhieu tang)))) - thanh tra canh nhung cong trinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (((chieu sang) OR (nhieu tang)))) - thanh tra canh nhung cong trinh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (((chieu sang) OR (nhieu tang)))) - thanh tra canh nhung cong trinh toan ban*.