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
hoc chieu » hoc thieu, ho chieu, hoc hien
ba trung » tai trung, nam trung, do 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: hoc chieu xanh - canh tranh ((cua truong) or (ba trung)) phuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - canh tranh ((cua truong) OR (ba trung)) phuong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - canh tranh ((cua truong) or (ba trung)) phuong dan toan cau*.