Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hieu manh » chieu xanh, hieu nganh, dieu hanh
dang cong » dung cong
toan tap » toan ban
va dang » van dang, va nang, va lang

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 trung) OR (thanh tung)) va dang cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - ((thanh trung) OR (thanh tung)) va dang cong thanh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - ((thanh trung) OR (thanh tung)) va dang cong thanh toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - ((thanh trung) OR (thanh tung)) va dang cong thanh toan tap*.