Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
cong song » cong dong, cong cong, song song
thanh tai » thanh hai, thanh toan, thanh san
ho chieu » hoc thieu, doi chieu, mot chieu
song ban » song van, dong ban, hong ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (ho chieu)) xanh - hanh doanh cua cong song ban ((thanh tai) OR (doanh tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) xanh - hanh doanh cua cong song ban ((thanh tai) OR (doanh tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) xanh - hanh doanh cua cong song ban ((thanh tai) OR (doanh tai))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) xanh - hanh doanh cua cong song ban ((thanh tai) OR (doanh tai))*.