Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
nhung hong » nhung chong, nhung huong, nhung phong
thien anh » thien danh, tien anh, thien thanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nhung » va nhung
van thanh » ban thanh, van tuan
tinh cua » trinh cua, sinh cua, tinh chat
van toan » van tuan, van tan, manh toan

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 (thien anh)) - hanh tinh cua nhung hong ((van toan) OR (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - hanh tinh cua nhung hong ((van toan) OR (van thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - hanh tinh cua nhung hong ((van toan) OR (van thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - hanh tinh cua nhung hong ((van toan) OR (van thanh)) cau*.