Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
thien anh » thien danh, tien anh, thien thanh
khach san » khach hang, thanh san
cua nhung » va nhung
cong van » cong vang, song van, cong tan
cong san » cong tac
toan tap » toan ban
san cua » sang cua, ban cua, dan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (thien anh)) - khach san cua nhung ((cong van) OR (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (thien anh)) - khach san cua nhung ((cong van) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (thien anh)) - khach san cua nhung ((cong van) OR (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (thien anh)) - khach san cua nhung ((cong van) OR (cong san)) toan tap*.