Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
duong manh » duong van
manh toan » thanh toan, anh tuan, tinh toan
dung cua » dung luan
toan ban » van ban

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