Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
dong thanh » truong thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong danh » cuong danh, cong dan, cong thanh
hoang anh » hoang minh, hoang van
doc hieu » toc thieu, hoc thieu, hoc hien
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: doc hieu manh - hanh tranh cua nhung ((cong danh) or (((hoang anh) or (dong thanh)))) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - hanh tranh cua nhung ((cong danh) OR (((hoang anh) OR (dong thanh)))) toan cao.
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - hanh tranh cua nhung ((cong danh) or (((hoang anh) or (dong thanh)))) toan cao*.