Perhaps you should try some spelling variations:
luan chung » luan chinh
phong cau » thong cau, phong cac, phong cai
khi hanh » thi hanh, chi hanh, chi nhanh
cach ban » cac ban, cach bao, cach ben
ban luan » bang luan, ban quan, bai luan
cong van » cong vang, song van, cong tan
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi hanh - cach ban luan chung ((cong van) or (cong san)) phong cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi hanh - cach ban luan chung ((cong van) OR (cong san)) phong cau.
• Adding a wildcard symbol may retrieve word variants: doi khi hanh - cach ban luan chung ((cong van) or (cong san)) phong cau*.