Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
thuong van » thong van, truong van, thuong va
hieu manh » chieu xanh, hieu nganh, dieu hanh
cap bang » cao bang, lap bang, cac bang
can bang » cao bang, can ban, van ban
van toan » van tuan, van tan, van thanh
toan tap » toan 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 ((hieu manh) or (chieu sach)) - thanh tung ((cap bang) OR (can bang)) thuong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - thanh tung ((cap bang) OR (can bang)) thuong van toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - thanh tung ((cap bang) OR (can bang)) thuong van toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - thanh tung ((cap bang) OR (can bang)) thuong van toan tap*.