Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cap » truong cao, trung tam
bang cong » dang cong, bang song, hang cong
cong san » cong tac
san ran » san van, san roman, van ranh
ran cau » van cau, ban cau, can cau

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 cap) or (trong nha)) bang cong san ran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - thanh ((trung cap) OR (trong nha)) bang cong san ran cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - thanh ((trung cap) or (trong nha)) bang cong san ran cau*.