Perhaps you should try some spelling variations:
phuong huong » phuong duong, phuong luong, thuong phuong
cua phuong » cuu phuong, cuc phuong, luan phuong
hien manh » hien hanh, tien manh, hien nhanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong cua » cong cu, dong cua, huong cua
than cau » phan cau, than cap, thanh chau
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 ((hien manh) or (hieu manh)) - thanh cong cua phuong huong dan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (hieu manh)) - thanh cong cua phuong huong dan ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien manh) or (hieu manh)) - thanh cong cua phuong huong dan ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien manh) or (hieu manh)) - thanh cong cua phuong huong dan ((than cau) OR (toan cau))*.