Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trinh » canh tranh, hanh chinh
danh toan » manh toan, anh toan, dan toan
ho chieu » theo chieu, hoc thieu, doi chieu
cua thoi » cua hoi, cua toi, cua khoi
cua luat » quy luat
toan cao » toan ban, toan tap

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

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