Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh toan » thanh hoa, thanh san, tinh toan
hanh dung » thanh dung, anh dung, hanh dong
bang song » nang song
manh toan » anh tuan, tinh toan
dung cua » dung luan, dung cho
cua bang » chua bang, cua ban, cua dang

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