Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
theo chieu » theo tieu, theo chu, thi chieu
hanh trinh » canh tranh, hanh chinh
thi phuong » thi truong
hanh tinh » nhanh tinh, thanh tinh, canh tinh
danh toan » manh toan, anh toan, dan toan
ho chieu » hoc thieu, doi chieu, mot chieu
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: ((ho chieu) OR (theo chieu)) xanh - ((hanh tinh) or (hanh trinh)) cua thi phuong danh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - ((hanh tinh) OR (hanh trinh)) cua thi phuong danh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) xanh - ((hanh tinh) or (hanh trinh)) cua thi phuong danh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) xanh - ((hanh tinh) or (hanh trinh)) cua thi phuong danh toan cao*.