Perhaps you should try some spelling variations:
phuong huong » phuong duong, phuong luong, thuong phuong
hien khang » chien thang, thieu khang, hien hanh
hien khanh » hien hanh, hien nhanh, dien khanh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
cua phuong » cuu phuong, cuc phuong, luan phuong
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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 khang) or (hien khanh)) - ((hanh tranh) OR (hanh trang)) cua phuong huong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien khang) OR (hien khanh)) - ((hanh tranh) OR (hanh trang)) cua phuong huong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien khang) or (hien khanh)) - ((hanh tranh) OR (hanh trang)) cua phuong huong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien khang) or (hien khanh)) - ((hanh tranh) OR (hanh trang)) cua phuong huong dan toan tap*.