Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh luan » trinh luan, trinh luat, doanh luan
huong dong » phuong dong, chuong dong, thuong dong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hung dong » vung dong, dung dong, hung long
hoc hieu » hoc thieu, hoc hien, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh tranh luan ((hung dong) OR (huong dong)) dinh van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - hanh tranh luan ((hung dong) OR (huong dong)) dinh van ban".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh tranh luan ((hung dong) OR (huong dong)) dinh van ban*.