Perhaps you should try some spelling variations:
phuong manh » phuong anh, phung manh, phuong danh
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
manh toan » thanh toan, anh tuan, tinh toan
cua luat » quy luat
toan cao » toan ban, toan tap
cua thi » cua thoi, cua toi, cua chi

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 - hanh trinh ((cua thi) or (cua luat)) phuong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh trinh ((cua thi) OR (cua luat)) phuong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh trinh ((cua thi) or (cua luat)) phuong manh toan cao*.