Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cua truong » cua trung, xuan truong, cac truong
phuong dan » phuong danh, phuong doan, huong dan
ho chieu » theo chieu, hoc thieu, doi chieu
do trung » bo truong, le trung
dan toan » van toan, dan than, manh 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: ho chieu xanh - canh tranh ((cua truong) or (do trung)) phuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh tranh ((cua truong) OR (do trung)) phuong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh tranh ((cua truong) or (do trung)) phuong dan toan cau*.