Perhaps you should try some spelling variations:
phuong toan » phong toan, phuong tran, phuong doan
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
toan thanh » tran thanh, hoan thanh, toan thang
thanh mau » hanh mau, thanh san, thanh hai
cua tong » cua dong, cua nong, cua song

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - canh tranh ((cua tong) or (cua cong)) phuong toan thanh mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - canh tranh ((cua tong) OR (cua cong)) phuong toan thanh mau.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh tranh ((cua tong) or (cua cong)) phuong toan thanh mau*.