Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
nhanh cau » nhanh cay, thanh chau, nhanh ha
doc hieu » toc thieu, hoc thieu, hoc hien
cong van » cong vang, cong san, cong tan
cong tac » cong ty
song van » hoang van, trong van, duong van

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 - canh tranh cua nhung ((((cong van) or (cong tac))) or (song van)) nhanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - canh tranh cua nhung ((((cong van) OR (cong tac))) OR (song van)) nhanh cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - canh tranh cua nhung ((((cong van) or (cong tac))) or (song van)) nhanh cau*.