Perhaps you should try some spelling variations:
phuong huong » phuong duong, phuong luong, thuong phuong
cuu phuong » cac phuong, thu phuong
hien manh » hien hanh, tien manh, hien nhanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong cuu » cong cu, cong cua, song cuu
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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 cuu phuong huong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (hieu manh)) - thanh cong cuu phuong huong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien manh) or (hieu manh)) - thanh cong cuu phuong huong dan chan cau*.