Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
thanh song » thanh cong, thanh son, thanh long
cong thanh » dong thanh, cong trinh, truong thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
song cua » cong cua, dong cua, huong cua
cong tan » cong tac, cong san, cong ty
toan cao » toan ban, toan tap

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

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