Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
manh hung » anh huong
hung chua » cung chua, hung chu, chung chuan
chua bang » chu bang, chua nang, chua xang
bang cong » dang cong, bang song, hang cong
thanh cac » hanh cac, thanh ca, tranh cac
thanh bac » nhanh bac, thanh bai, thanh san
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu manh) or (chieu xanh)) - manh hung chua bang cong san ((thanh cac) OR (thanh bac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu manh) OR (chieu xanh)) - manh hung chua bang cong san ((thanh cac) OR (thanh bac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu manh) or (chieu xanh)) - manh hung chua bang cong san ((thanh cac) OR (thanh bac))".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu manh) or (chieu xanh)) - manh hung chua bang cong san ((thanh cac) OR (thanh bac))*.