Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
phuong lan » phuong la, thuong lan, phuong linh
trang dan » trang doan, tang dan, trong dan
dan dung » van dung, tin dung, ap dung
lan toan » van toan, dan toan, lap toan
toan cau » 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 (chieu xanh)) - hanh trang dan dung phuong lan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - hanh trang dan dung phuong lan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - hanh trang dan dung phuong lan toan cau*.